mark: Standard stocked item
mark:
To be replaced by a new item featured on the same page
mark: To be replaced by new item
(Please confirm stock availability)
mark:
Semi-standard stock (Please confirm stock availability)
mark:
Stock or planned stock (Please confirm stock availability)
No mark: Made-to-order item
mark: We cannot produce
Stock Indications and Symbols
F1
F
Grooving Tools
Triangular Grooving Inserts
External Grooving
Internal Grooving
Face Grooving
Hardened Steel
SEC-Grooving Tool Series Selection Guide F2
GWC Type (Shallow Grooves) F4
GWCS Type (Shallow Grooves) F5
GWCI Type (Internal Shallow Grooves) F5
Indexable Inserts for External & Internal Grooving TGA Type
F6
Insert for GWC Type F7
Inserts with Chipbreaker SumiTurn B-Groove
F8
Special Insert Request Form (Japan Domestic Market Only)
F9
SEC-GND Type Tool F10
GNDM Type / GNDML Type (Small Tool) F18
GNDS Type (Shallow Grooves) F19
GNDM Type / GNDMS Type (General Purpose) F20
GNDL Type / GNDLS Type (Deep Grooves) F22
SGE Type (Wide Grooves) F24
CKB Type F25
SGIT Type (Small Diameter) F25
GNDI Type (General Purpose Internal Grooving)
F26
CKB Type (Very Small Diameter Grooves) F27
GNDF Type (General Purpose) F28
GNDFS Type (General Purpose) F30
SUMIBORON (CBN) GWB Type (Hardened Steel, Shallow Grooves)
F31
SUMIBORON (CBN) BNGG Type (Hardened Steel, Shallow Grooves)
F32
SEC-Internal Threading Tool Series Selection Guide F48
Basics of Threads F51
External Grooving Internal Grooving F52
External Grooving F60
Internal Grooving F65
Threading Tools
T
Cut-Off Tools
C
SEC-Cut-Off Tool Series Selection Guide F34
Introduction of SumiGrip F35
SumiGrip Jr. F36
SumiGrip F38
SEC-Small Diameter Cut-off Tools F40
SEC-Grooving / Cut-Off Tools F42
Grooving Tools
F1 to F32
F
Grooving / Cut-Off
Threading Tools
Grooving
Cut-Off
Threading
F
Grooving Tools
F2
F
Grooving
Cut-Off
Threading
40
30
20
10
5
012345678910
Width (mm)
3
2
1
4
5
012345
Width (mm)
External Grooving
Holder Selection for Small Widths
GNDL
GWC/GWCS
SGE
GNDMS
GNDS
GNDM
GWB
Hardened Steel
GWC/
GWCS
GWC/
GWCS
GNDL
GNDL
GNDM
GNDM
EXTERNAL GROOVING TOOLS
GWC
GWCS
SGE
2468
10 20 30 40
10
5.0
4.8
0.33
5.0
4.8
0.33
8.0
6.03.0
10.0
6.02.0
12.0
3.01.5
16.0
3.01.25
F4
F5
(
3
)
F21
F21
F21
(
2
)
GNDM
GNDS
GNDM
Small Tool
Small Tool
GNDMS
18.0
8.02.0
23.0
6.03.0
F14
F14
F14
High rigidity design reduces vibration
Perfect for turning and copying
"L-styled" (side cut) GNDM holder
High rigidity design reduces vibration
Short tool overhang enables high-efficiency
grooving and traverse cutting
High rigidity design reduces vibration
A 16mm square shank is available
High rigidity design reduces vibration
A 10mm, 12mm and 16mm square
shank are available
GNDL
GNDL
GNDLS
25.0
8.02.0
25.0
6.02.0
F15
F15
High rigidity design reduces vibration
Perfect for grooving, deep grooving and cut-off applications
"L-styled" (side cut) GNDM holder
For Hardened Steel, please refer to (→F32) for SUMIBORON Grooving tools BNGG type
Turning Possible
Turning Possible
Hardened Steel
(Standard, with Chipbreaker)
GWB
F31
5.0
6.0
1.5
(
1
)
* For grooving depths and width combinations, refer to the above figures or the relevant page.
(
2
)
(
2
)
Turning Possible
(
2
)
(
2
)
Small Tool
Small Tool
Small Tool
Small Tool
Small Tool
Small Tool
Depth (mm)
Depth (mm)
Application
Shallow GroovesGeneral Grooves
Deep Grooves
Series Shape
Structure
Depth*
Width*
Characteristics
Screw-on
Clamp-on
Double Clamp
Insert
Shape
( ): No. of corners
High rigidity double clamping
(Inserts for GCE holders can be used)
3-cornered inserts
Inserts with Chipbreaker are stocked
"L-styled" (side cut) GWC holder
High rigidity double clamping
Employs coated SUMIBORON for
interrupted cutting of hardened steel
Wide grooves possible
SEC-Grooving Tool Series
SELECTION GUIDE
Grooving Tools
F3
F
Grooving
Cut-Off
Threading
INTERNAL GROOVING TOOLS
* For grooving depths and width combinations, refer to the above figures or the relevant page.
ø10
SGIT
CKB
2468
10 20 30
3.2
2.0
0.5
1.0
2.0
1.0
F22
(
3
)
(
1
)
ø4
ø35
GWCI
2.5
4.8
0.33
F5
(
3
)
GNDI
F23
(
2
)
ø32
11
6.0
2.0
FACE GROOVING TOOLS
Note: * For grooving depths and width combinations, refer to the above figures or the relevant page.
GNDF
GNDFS
2468
10 20 30
23
6.03.0
20
6.0
F26
F26
High rigidity design reduces vibration
"L-styled" (side cut) holder
Wide Grooves
From
ø6
CKB
4.0
3.01.5
F25
(
1
)
Face grooving for small lathes
ø35
ø1,000
From
ø70
F22
(Standard, with Chipbreaker)
30
20
10
0
123456
7
30
20
10
0123456789
Width (mm)Width (mm)
GWCI
CKBSGIT
CKB
GNDFS
GNDF
GNDI
(Note) * mark: Made to order
Turning Possible
(
2
)
Turning Possible
Made-to-order
Internal Grooving
Face Grooving
Depth (mm)
Depth (mm)
Min. Bore
(mm)
Series Shape
Structure
Screw-on
Clamp-on
Double Clamp
Characteristics
Depth*
Width*
Insert
Shape
( ): No. of corners
Work Dia.
(mm)
Series Shape
Structure
Characteristics
Depth*
Width*
Insert
Shape
( ): No. of corners
Application
Small-Dia Grooves
General Deep
Grooves
Shallow Grooves
Application
Very Small-Dia.
Grooves
General Deep Grooves
to
Very small diameter grooving
High clamping force
Huge variety of holders
3-cornered type
Using inserts for GWC holders
Inserts with Chipbreaker are stocked
High rigidity design reduces vibration
Only grooving widths of
6 and 8mm are
Screw-on
Clamp-on
Double Clamp
SEC-Grooving Tool Series
SELECTION GUIDE
F4
F
Grooving Tools
Grooving
Cut-Off
Threading
Spare Parts
Holders Right handed holders are applicable with right handed inserts.
Cat. No.
Stock Dimensions (mm)
Fig.
Grooving Width
(mm)
Max.
Grooving
Depth
(mm)
* Group
No.
Screw
Recommended
Tightening
Torque
N m
Spanner
Clamp
Double
Screw
Spanner
RL hbL
1
fh
1
w
GWC R/L1010-3
10 10 125 10 10 2
0.33 to 2.80
0.8 to 2.5
BFTX0409N
3.4 TRX15
GWC R/L1212-3
12 12 125 12 12 2
0.33 to 2.80
0.8 to 2.5
GWC R/L1616-3
16 16 125 16 16 3
0.33 to 2.80
0.8 to 2.5
GWC R/L2020-3
20 20 125 25 20 1
0.33 to 2.80
0.8 to 2.5
BFTX0409N
3.4 TRX15
CCM6B L/R
WB6-20T/TL
LT20
GWC R/L2525-3
25 25 150 30 25 1
0.33 to 2.80
0.8 to 2.5
GWC R/L2020-15
20 20 125 25 20 1
1.00 to 1.45
2.0
BFTX0511N
5.0 TRX20
CCM8U L/R
WB8-22T/TL
LT27
GWC R/L2020-25
20 20 125 25 20 1
1.50 to 2.30
3.5
GWC R/L2020-35
20 20 125 25 20 1
2.50 to 4.80
5.0
GWC R/L2525-15
25 25 150 30 25 1
1.00 to 1.45
2.0
GWC R/L2525-25
25 25 150 30 25 1
1.50 to 2.30
3.5
GWC R/L2525-35
25 25 150 30 25 1
2.50 to 4.80
5.0
* Refer to pages F6, F7, and F8 for applicable TGA type inserts. Select applicable inserts for the holders by using matching group numbers.
External Shallow Grooves
Characteristics of GWC Series
Similar insert can be use for both external and internal grooving
Full range of insert grades to cover a wide range of work materials available
Coated Carbide AC530U, Uncoated Carbide H1,
Coated Cermet T3000Z,
Cermet T1500A/T1200A,
SUMIBORON BN2000/BN250,
SUMIDIA DA2200.
A wide variation of grooving widths from 0.33mm to 4.8mm
Insert with Chipbreaker, SumiTurn B-Groove, are now stocked
Customers can modify the grooving width, nose radius and rake
angle according to their own requirements using the grooving insert
blanks (* Sumitomo Electric Hardmetal also accepts special orders.)
External Grooving
GWC
SEC-Grooving Tools
GWC
Type
External
f
f
f
b
b
b
h
h
h
h
1
h
1
w
w
w
2°
5°
L
1
Rake Angle
Rake Angle
Rake Angle
16
2°
2°
5°
17
17
Fig. 1 Fig. 2 Fig. 3
L
1
L
1
17
5°
h
1
Note 1: Refer to insert table on F5 for ° dimensions.
Note 2: Figures show right hand tools.
F5
F
Grooving Tools
Grooving
Cut-Off
Threading
Spare Parts
Holders Right handed holders are applicable with left handed inserts.
Cat. No.
Stock Dimensions (mm)
Grooving Width
(mm)
Max.
Grooving
Depth
(mm)
* Group
No.
Screw
Recommended
Tightening
Torque
N m
Spanner
Clamp
Double
Screw
Spanner
RL hbL
1
fh
1
w
GWCS R/L2020-3
20 20 125 25 20
0.33 to 2.80
0.8 to 2.5
BFTX0409N
3.4 TRX15
CCM6BR/L
WB6-20TL/T
LT20
GWCS R/L2525-3
25 25 150 30 25
0.33 to 2.80
0.8 to 2.5
GWCS R/L2020-15
20 20 125 27 20
1.00 to 1.45
2.0
BFTX0511N
5.0 TRX20
CCM8UR/L
WB8-22TL/T
LT27
GWCS R/L2020-25
20 20 125 27 20
1.50 to 2.30
3.5
GWCS R/L2020-35
20 20 125 27 20
2.50 to 4.80
5.0
GWCS R/L2525-15
25 25 150 32 25
1.00 to 1.45
2.0
GWCS R/L2525-25
25 25 150 32 25
1.50 to 2.30
3.5
GWCS R/L2525-35
25 25 150 32 25
2.50 to 4.80
5.0
* Refer to pages F6, F7, and F8 for TGA type inserts applicable with the GWCS holder.
Select applicable inserts for the holders by using matching group numbers.
External L-Styled (Side Cut)
Internal Grooving
Spare Parts
Holders Right handed holders are applicable with left handed inserts.
Cat. No.
Stock Dimensions (mm)
Min. Bore
Grooving Width
(mm)
Max. Grooving
Depth (mm)
* Group
No.
Screw
Recommended
Tightening
Torque
N m
Spanner
RLøD
s
hL
1
fh
1
øD
m
w
GWCI R/L325
25 23 220 17.5 11.5 35 0.33
to
2.80 0.5 to 2.0
BFTX0409N
3.4 TRX15
GWCI R/L432
32 30 250 23.0 15.0 40 1.25
to
4.80 1.7 to 2.5
BFTX0511N
5.0 TRX20
* Refer to pages F6, F7, and F8 for TGA type inserts applicable with the GWCI holder.
Select applicable inserts for the holders by using matching group numbers.
Rake Angle when Fitted on Holder ( °)
Coated Carbide
Carbide
Coated Cermet
Cermet SUMIBORON SUMIDIA
AC530U H1 T3000Z T1500A T1200A BN2000 BN250 DA2200
Ext. Grooving
GWC
GWCS
10° 20° 10° 5° 5° 0° 0° 10°
Int. Grooving
GWCI
1° 11° 1°
4° 4° 9° 9°
1°
External Grooving
GWCS
External Grooving
GWCI
14°
2°
30
w
h
L
1
fh
1
øD
m
øD
s
Rake Angle
Note 1: Refer to insert table on this page for ° dimensions.
Note 2: Figures show right hand tools.
SEC-Grooving Tools
GWCS / GWCI
Type
fh
1
bh
w
L
1
2°
5°
Rake Angle
External
Internal
Note 1: Refer to insert table on this page for ° dimensions.
Note 2: Figures show right hand tools.
F6
F
Grooving Tools
Grooving
Cut-Off
Threading
Insert
Cat. No.
(Add E to the end of the Cat. No.
for T1500A and T1200A grades)
Coated Carbide
Carbide
Coated Cermet
Cermet SUMIBORON
SUMIDIA
Grooving
Width (mm)
Max. Grooving
Depth (mm)
Dimensions (mm)
* Group
No.
AC530U H1 T3000Z T1500A T1200A BN2000 BN250 DA2200
RLRLRLRLRLRLRLRL w
External
Internal
a øds
TGA R/L3033(E)
0.33 0.8 0.5 1.0
0.05
9.525 3.18
TGA R/L3050(E)
0.50 1.2 0.8 1.4
TGA R/L3075(E)
0.75
2.0 1.5 2.5
0.1
0.2
for
T1500A/
T1200A
TGA R/L3095(E)
0.95
TGA R/L3100(E)
1.00
TGA R/L3110(E)
1.10
TGA R/L3125(E)
1.25
TGA R/L3135(E)
1.35
TGA R/L3145(E)
1.45
TGA R/L3150(E)
1.50
TGA R/L3165(E)
1.65
TGA R/L3175(E)
1.75
TGA R/L3185(E)
1.85
TGA R/L3200(E)
2.00
2.5 2.0 3.0
TGA R/L3220(E)
2.20
TGA R/L3230(E)
2.30
TGA R/L3250(E)
2.50
TGA R/L3265(E)
2.65
TGA R/L3270(E)
2.70
TGA R/L3280(E)
2.80
TGA R/L4125(E)
1.25
2.0 1.7 2.5
0.2
2
12.70
4.76
TGA R/L4145(E)
1.45
TGA R/L4150(E)
1.50
3.5 2.5 3.9
TGA R/L4165(E)
1.65
TGA R/L4175(E)
1.75
TGA R/L4185(E)
1.85
TGA R/L4200(E)
2.00
TGA R/L4220(E)
2.20
TGA R/L4230(E)
2.30
TGA R/L4250(E)
2.50
5.0
1
2.5
5.4
1
0.3
2
TGA R/L4265(E)
2.65
TGA R/L4270(E)
2.70
TGA R/L4280(E)
2.80
TGA R/L4300(E)
3.00
TGA R/L4320(E)
3.20
TGA R/L4330(E)
3.30
TGA R/L4350(E)
3.50
5.0 2.5 5.4
TGA R/L4370(E)
3.70
TGA R/L4390(E)
3.90
TGA R/L4400(E)
4.00
0.4
2
TGA R/L4410(E)
4.10
TGA R/L4420(E)
4.20
TGA R/L4430(E)
4.30
TGA R/L4440(E)
4.40
TGA R/L4450(E)
4.50
TGA R/L4480(E)
4.80 5.00
* Refer to pages F4, F5 for applicable holders GWC, GWCS and GWCI types.
Select applicable inserts for the holders by using matching group numbers.
1: SUMIBORON, SUMIDIA is = 4.4 (4.0)
2: SUMIBORON is
= 0.2, SUMIDIA is = 0.1
Grade
Cutting Edge
Coated Carbide
AC530U Honing
15°
Carbide H1 Sharp
25°
Coated Cermet
T3000Z Honing
15°
Cermet
T1500A Sharp
10°
T1200A Sharp
10°
SUMIBORON
BN2000
Negative Land
5°
BN250
Negative Land
5°
SUMIDIA DA2200 Sharp
15°
* For rake angle when fitted on the holder, refer to
page F5.
ød
s
w
a
0.025
Above figures show right hand tools.
Indexable Inserts for External & Internal Grooving
TGA
Type
mark : To be replaced by new item (Please confirm stock availability)
F7
F
Grooving Tools
Grooving
Cut-Off
Threading
Recommended Cutting Conditions
Work Material
P
General Steel
M
Stainless Steel
N
Non-Ferrous Metal
H
Hardened Steel
Grade
AC530U T3000Z
T1500A/T1200A
AC530U T3000Z
T1500A/T1200A
H1 DA2200
BN2000/BN250
Cutting Speed v
c
(m/min)
50 to 200 100 to 180 100 to 180 50 to 200 80 to 150 80 to 120 200 to 300 200 to 300 80 to 120
Feed Rate f (mm/rev)
0.02 to 0.10 0.05 to 0.10 0.05 to 0.08 0.02 to 0.10 0.05 to 0.08 0.05 to 0.08 0.05 to 0.15 0.05 to 0.15 0.03 to 0.07
Insert
Cat. No.
Coated Carbide
Carbide
Coated Cermet
SUMIBORON
SUMIDIA
Grooving
Width (mm)
Max. Grooving
Depth (mm)
Dimensions (mm)
* Group
No.
AC530U
H1
T3000Z
BN2000 DA2200
RLRLRL RLRL w
External
Internal
a øds
TGA R/L4050R
1.00 2.0 1.7 2.5 0.50
12.70 4.76
TGA R/L4075R
1.50
3.5 2.5 3.9
0.75
TGA R/L4100R
2.00
1.00
TGA R/L4125R
2.50
5.0
1
2.5
5.4
1
1.25
TGA R/L4150R
3.00 1.50
TGA R/L4200R
4.00
2.00
* Refer to pages F4, F5 for applicable holders GWC, GWCS and GWCI types.
Select applicable inserts for the holders by using matching group numbers.
1:
SUMIBORON, SUMIDIA is a = 4.4 (4.0)
Max. grooving depth 4.0 (Boring bars 2.5)
Precautions When Modifying Inserts
When modifying the rake face, please refer
to the dimensions in Fig. 3. Dimensions
shown in Fig. 4 is when the insert is
mounted on the holder.
Recommended Modification
Mounted Insert Dimensions
Insert Blanks
(Uncompleted inserts: Grooving width, nose radius and rake angle modification required)
Above figures show right hand tools.
Cat. No.
Carbide Cermet
Dimensions (mm)
Fig.
KH03 H1
EH510
T1500A T1200A
RLRLRLRLRL waøds
TGA R/L3-T18
1.85
3.4
9.525 3.18 1
TGA R/L3-T23
2.35
3.4
9.525 3.18 1
TGA R/L3-T31
3.18 9.525 3.18 2
TGA R/L4-T22
2.20
4.8
12.70 4.76 1
TGA R/L4-T37
3.75
6.2
12.70 4.76 1
TGA R/L4-T47
4.76 12.70 4.76 2
Note: Figures in parentheses are reference values.
Ordering Special TGA Type Inserts
Use the "Special Insert Request Form" on page F9 when ordering special inserts (with different shapes, grooving widths, and
cutting edge lengths). Make a copy of the form, fill it out, and send it to a Sumitomo Electric Hardmetal dealer or distributor.
ød
s
w
a
0.025
Above figures show right hand tools.
Grade
Cutting Edge
Coated Carbide
AC530U Honing
15°
Carbide H1 Sharp
25°
Coated Cermet
T3000Z Honing
15°
SUMIBORON
BN2000
Negative Land
5°
SUMIDIA DA2200 Sharp
15°
* For rake angle when fitted on the holder, refer to
page F5.
ød
s
w
a
2°
Fig. 1
ød
s
w
2°
Fig. 2
Fig. 3
0.45mm
5°
4°
4°
2°
2°
Fig. 4
5°
2°
2°
2°
2°
* Sumitomo Electric Hardmetal also accepts special orders. Use the "Special Insert Request Form" on page F9 when ordering.
Indexable Inserts for External & Internal Grooving
TGA
Type
mark : To be replaced by new item (Please confirm stock availability)
F8
F
Grooving Tools
Grooving
Cut-Off
Threading
Chipbreaker Insert for Square Grooves BF Type
Fig. 1 Fig. 2
ød
0.025
w
a
s
e
Cat. No.
Coated Carbide
Grooving
Width
(mm)
Max. Grooving
Depth (mm)
Dimensions (mm)
Fig.
* Group
No.
AC530U
RL w
External Internal
a øds e
TGA R/L4140BF01
1.40
2.0 1.7 2.5 0.1
12.70 4.76 0.300
2
TGA R/L4165BF01
1.65
3.5 2.5 3.9 0.1
12.70 4.76
0.175
2
TGA R/L4190BF01
1.90
01
TGA R/L4220BF01
2.20
TGA R/L4270BF02
2.70
5.0 2.5 5.4 0.2
12.70 4.76
01
TGA R/L4320BF02
3.20
TGA R/L4420BF02
4.20
TGA R/L4150BF
1.50
3.5 2.5 3.9 0.2
12.70 4.76
0.250
2
TGA R/L4165BF
1.65 0.175
TGA R/L4175BF
1.75 0.125
TGA R/L4185BF
1.85 0.075
TGA R/L4200BF
2.00
01
TGA R/L4220BF
2.20
TGA R/L4230BF
2.30
TGA R/L4250BF
2.50
5.0 2.5 5.4
0.3
12.70 4.76
01
TGA R/L4265BF
2.65
TGA R/L4270BF
2.70
TGA R/L4280BF
2.80
TGA R/L4300BF
3.00
TGA R/L4320BF
3.20
TGA R/L4330BF
3.30
TGA R/L4350BF
3.50
TGA R/L4370BF
3.70
TGA R/L4390BF
3.90
TGA R/L4400BF
4.00
0.4
TGA R/L4410BF
4.10
TGA R/L4420BF
4.20
TGA R/L4430BF
4.30
TGA R/L4440BF
4.40
TGA R/L4450BF
4.50
General Features
To solve chip con t ro l pro ble m s, gro o vin g in s e r t s wi t h
SumiTurn B-Groove (BF Type) chipbreakers have
been added to the TGA Type insert line-up.
Characteristics
Achieving good chip control in a wide range of grooving processes.
Good chip control during final wide groove touch-up with traverse tool movement.
A selection of 14 models for snap ring applications are available in edge widths from 1.4 to 4.5 mm for a total of 60 models.
The AC530U grade with Super ZX Coat for a longer tool life, is now available to cover various
work materials from Steel, Stainless Steel to Non-ferrous metals.
Grade
Cutting Edge
Coated Carbide
AC530U Honing
15°
* For rake angle when fitted on the holder, refer to
page F5.
Note 1: Please note that cutting edge dimension e
differs, for grooving widths below 1.85mm.
Note 2: Figures show right hand tools.
SumiTurn B-Groove
* Refer to pages F4, F5 for applicable holders GWC, GWCS and GWCI
types. Select applicable inserts for the holders by using matching group
numbers.
Recommended Cutting Conditions
Work Material
Process
Cutting Conditions
Grooving Width w
1.4 to 2.3 2.5 to 3.3 3.5 to 4.5
P
General Steel
Cutting Speed v
c
(m/min)
50 to 180 50 to 180 50 to 180
Grooving
Feed Rate f (mm/rev)
0.03 to 0.12 0.04 to 0.12 0.05 to 0.12
Depth of Cut
a
p
(mm)
External
Diameter
UP to 3.5 UP to 5.0 UP to 5.0
Internal
Diameter
UP to 2.5 UP to 2.5 UP to 2.5
Turning
Feed Rate f (mm/rev)
0.03~0.10 0.05~0.10 0.07~0.12
Depth of Cut a
p
(mm)
UP to 0.3 UP to 0.5 UP to 0.7
M
Stainless Steel
Cutting Speed v
c
(m/min)
50 to 160 50 to 160 50 to 160
Grooving
Feed Rate f (mm/rev)
0.03 to 0.12 0.04 to 0.12 0.05 to 0.12
Depth of Cut
a
p
(mm)
External
Diameter
UP to 3.5 UP to 5.0 UP to 5.0
Internal
Diameter
UP to 2.5 UP to 2.5 UP to 2.5
Turning
Feed Rate f (mm/rev)
0.03 to 0.10 0.05 to 0.10 0.07 to 0.12
Depth of Cut a
p
(mm)
UP to 0.3 UP to 0.5 UP to 0.7
F9
F
Grooving Tools
Grooving
Cut-Off
Threading
Type
Shape
21
w
a
r
21
C
1
w
a
r
1
2
1
C
1
e
C
2
w
a
r
2
1
1
w
a
r
Uses Internal Grooving, External Grooving
Holders GWC Type (page F4), GWCS Type (page F5), GWCI Type (page F5)
Direction Right-hand (R), Left-hand (L)
Insert Size "3" ø9.525 "4" ø12.70
w
a
r
C
1
C
2
e
1
2
1
2
Grades
Quantity
Remarks
To order special grooving inserts, fill out the form below
(indicate preference by circling the item, or specify
dimensions), and send it to a Sumitomo Electric Hardmetal
dealer or distributor. (Make a copy of this form.)
For grooving inserts in a different shape, groove width, cutting
edge length, or grade not listed below, contact your nearest
Sumitomo Electric Hardmetal dealer or distributor.
This form applies to the GWC Type (page F4), GWCS Type (page F5), GWCI Type (page F5) inserts.
This form is applicable to Japan domestic market only
Form instructions
1.
The above illustration shows only external right-hand and internal left-hand inserts. (The inserts
for an external left-hand and internal right-hand will be opposite the above illustration.)
2. Two insert sizes are available.
3 : Inscribed circle 9.525mm
4 : Inscribed circle 12.70mm
3. Dimension limits for groove width and groove depth.
1 Max. groove width w 4.8mm
· Type and w ≤ 4.8 (SumiTurn and B-Groove (BF Type): 4.5 mm)
· Type : w C
1
≤ 4.8 (SumiTurn and B-Groove (BF Type): 4.5 mm)
· Type : w S (or C
1
) C
2
≤ 4.8
(SumiTurn and B-Groove (BF Type): 4.5 mm)
(2) Min. groove width (w) · Insert size 3 : w ≥ 0.33mm
· Insert size 4 : w ≥ 0.75mm
(3) Depth (a
r
) · Insert size 3 : a
r
≤ 0.8 to a
r
≤ 2.5mm (Internal grooving : a
r
≤ 0.8 to a
r
≤ 2.0)
· Insert size 4 : a
r
≤ 2.0 to a
r
≤ 5.0mm (Internal grooving : a
r
≤ 2.0 to a
r
≤ 2.5)
4
.
SumiTurn B-Groove inserts with chipbreaker are limited to insert size 4 and the AC530U grade.
For shape details,please contact us directly.
5 Standard tolerance for inserts.
Symbol
Standard Tolerance
w ±0.025mm
a
r
±0.05mm
1 2
±1°
Unless otherwise specified, inserts are made to standard tolerances.
6. Grades are based on the catalogue number in stock.
7.
The applicable toolholders for Type , , and
should match dimension w. Contact us for
Type .
Your Company/Contact Information (Phone/Fax/Address, etc.)
F10
F
Grooving Tools
Grooving
Cut-Off
Threading
SEC-Grooving Tools
GND
Series
Characteristics
Wide range of application processes
Applicable for grooving, turning, copying, facing and boring
Achieving stable tool life
An array of chipbreakers improves the efficiency in chip control in various
applications, and prevents unexpected damages caused by chip blockage
Achieving reduced chattering and high efficiency machining
Holders utilizing one-piece body construction made with special steel, reduces
vibration during machining by 30% as compared to conventional models
Achieving high precision grooving widths with moulded inserts
High precision sintering technology achieves an edge width tolerance
of ±0.03mm over a range of edge widths from 1.25 to 6.0mm
Reduces vibration by up to 30% compared to conventional
grades thanks to its high-rigidity design.
Performance
Application Examples
Work Material SCM435
Holder GNDL R2525M-320 Insert GCM N3002-GG AC530U
Cutting Conditions v
c
=130m/min f =0.30mm/rev Wet
Work Material SCM415
Holder GNDL R2525M-220 Insert GCM N2002-GG
Cutting Conditions v
c
=100m/min f =0.10mm/rev a
p
=20.0mm, Wet
Work Material S53C
Holder GNDM L2525M-618 Insert GCM N6030-RG AC530U
Cutting Conditions v
c
=130m/min f =0.3mm/rev Wet
Work Material SCM415
Holder GNDI R2532-T306 Insert GCM N3002-GG
Cutting Conditions v
c
=100m/min f =0.05mm/rev a
p
=3.0mm, Wet
Stable and long tool life ensures reliable functionality even on automatic production lines!!
Substantially improved machining efficiency!!
Normal Wear
Competitor’s Product
GND
Breakage
Reduction of chattering prevents unexpected breakage.High rigidity holder enables high load machining at high feed rate.
f =0.30mm/rev
f =0.08mm/rev
GND
Competitor's
Product
Improved efficiency
by over 300%
Machining Efficiency
Reduces Chattering
Ensures Both High Rigidity and Good Chip Evacuation
Internal
Die Steel
One-piece
body structure
Wide Pocket Improves
Chip Evacuation
Oil-hole
Oil-hole
Improved Chip Evacuation
Coolant is directed onto
Rake Face of Cutting Edge
One-piece
body structure
Die Steel
GND
Conventional Grade(Unit Type)
Small Vibration
Large Vibration
Large Vibration
Comp. B
GND
Comp. A
Unstable Vibration
Stable and Reduced Vibration
Packing
Packing
of chips
of chips
Packing
of chips
F11
F
Grooving Tools
Grooving
Cut-Off
Threading
SEC-Grooving Tools
GND
Series
Low Cutting Resistance Chipbreaker GF Type
Reduces chattering during cutting
Ideal for machining using low-powered equipment such as small lathes
Reduces adhesion to tools and achieves long tool life in machining of stainless steel, etc.
Min. groove width 1.25mm
Effective for reduction of material costs and
for reduction of vibration during cutting off.
Achieves excellent chip control and reduced cutting resistance due
to the sharp cutting edge design with a 30° rake ange as well as the
reduction of frictional resistance through chip control with point contact.
Application Examples
1,000
800
600
400
200
0
Conventional Grade
General purpose Type
Principal Force Back Force
GF Type
Competitor's Product
Low cutting force Type
713
831
372
593
751
408
Cutting Resistance (N)
Work Material S45C ø30mm Cut-off applications
Holder GNDL R2525M-320 Insert GCM N3002-
GF AC530U
Cutting Conditions v
c
=80m/min f =0.10mm/rev Wet
Competitor's Product
Low cutting force Type
GF Type
Large Vibration
Stable and Reduced Vibration
Work Material SUS316 ø30mm Cut-off applications
Holder GNDL R2525M-320 Insert GCM N3002-
GF AC530U
Cutting Conditions v
c
=80m/min f =0.10mm/rev Wet
w=2.0mm
w=1.25mm
w=1.5mm
Chip Control with Point Contact
Sharp Cutting Edge Design with a 30° rake angle
Work Material SCM415 ø22mm
Holder GNDL R1212JX-1.2512
Insert GCM N125005-GF (AC530U)
Cutting Conditions n =2000min
-1
f =0.03mm/rev Wet
Provides Excellent Surface Finish and Chip Control
Machined SurfaceChip
GND GF Type
Competitor's Product
GND Series Expansion For Small Lathes
The lineup includes grooving widths of 1.25, 1.5, 2.0, and 3.0mm
Reduces chattering and achieves high-efficiency machining
Reducing vibration during grooving by employing the same
high-rigidity holder design of the GND series
Reduces chip control problems
The GF type chipbreaker is added to the current wide selection of
chipbreakers, to improve chip control under various conditions
F12
F
Grooving Tools
Grooving
Cut-Off
Threading
Achieving stability and longer tool life… A variety of chipbreakers ensure outstanding chip control performance in many different types of applications.
Improved chip control
SEC-Grooving Tools
GND
Type
Grooving/Turning
Copying
Grooving/Cut-Off
General Purpose Type
Standard insert for turning
Grooving Widths in Stock mm
Stock
Low Feed Type
For low-feed chip management
General Purpose Type
First choice for grooving
Low Feed Type
For low-feed chip management
Low cutting force Type
Applicable to ultra-thin grooving
Cut-Off Type
Ideal for cut-off applications
General Purpose Type
Perfect for copying
0.10
15°
0.05
20°
0.10
20°
0.10
20°
30°
25°
0.05
25°
MG Type ML Type GG Type GL Type
GF Type
CG Type
RG Type
1.25 1.5 2.0
3.0 4.0 5.0
6.0
AC830P AC425K
AC520U AC530U
Stock
AC830P AC425K
AC520U AC530U
Stock
AC830P AC425K
AC520U AC530U
Stock
AC830P AC425K
AC520U AC530U
Stock
AC830P AC425K
AC520U AC530U
Stock
AC830P AC425K
AC520U AC530U
Stock
AC830P AC425K
AC520U AC530U
7.0 8.0
Grooving Widths in Stock mm
1.25 1.5 2.0
3.0 4.0 5.0
6.0 7.0 8.0
Grooving Widths in Stock mm
1.25 1.5 2.0
3.0 4.0 5.0
6.0 7.0 8.0
Grooving Widths in Stock mm
1.25 1.5 2.0
3.0 4.0 5.0
6.0 7.0 8.0
Grooving Widths in Stock mm
1.25 1.5 2.0
3.0 4.0 5.0
6.0 7.0 8.0
Grooving Widths in Stock mm
1.25 1.5 2.0
3.0 4.0 5.0
6.0 7.0 8.0
Grooving Widths in Stock mm
Cross Section of Cutting Edge Cross Section of Cutting Edge Cross Section of Cutting Edge Cross Section of Cutting Edge Cross Section of Cutting Edge Cross Section of Cutting Edge Cross Section of Cutting Edge
1.25 1.5 2.0
3.0 4.0 5.0
6.0 7.0 8.0
* Only AC530U is in stock.
All the CG type products are handed.
Recommended Cutting Conditions
Work Material
P
Carbon Steel, Alloy Steel
M
Stainless Steel
K
Cast Iron
S
Exotic Alloy
Grade
AC830P AC520U AC530U AC830P AC520U AC530U AC425K AC520U AC530U AC520U AC530U
Cutting Speed v
c
80 to 200 80 to 200 50 to 200 70 to 150 70 to 150 50 to 150 80 to 200 60 to 200 50 to 200 20 to 80 20 to 60
GND Type GG Type Chipbreaker
Conventional Grade Conventional Grade
GND Type ML Type Chipbreaker
GND Type CG Type Chipbreaker
Competitor's Product Conventional Grade
GND Type RG Type Chipbreaker
Grooving Traversing
Cut-Off Application Copying
Work Material: SCM415
Holder: GNDM R2525M-312 Insert: GCM N3015-
RG
Cutting Conditions: v
c
=1 0m/min f =0. mm/rev a
p
=0.1mm Wet
Work Material: SUS316(ø30mm)
Holder: GNDL R2525M-220 Insert: GCM R2002-
CG-05
Cutting Conditions: v
c
=100m/min f =0.15mm/rev Wet
Work Material: SCM415
Holder: GNDM R2525M-312 Insert: GCM N3002-ML
Cutting Conditions: v
c
=100m/min f =0.10mm/rev a
p
=0.5mm Wet
Work Material: SCM415
Holder: GNDL R2525M-320 Insert: GCM N3002-GG
Cutting Conditions: v
c
=100m/min f =0.15mm/rev a
p
=12.0mm Wet
F13
F
Grooving Tools
Grooving
Cut-Off
Threading
Chipbreaker Selection
Grade Selection
SEC-Grooving Tools
GND
Series
Grooving / Turning
Grooving Cut-Off
MG
Type
General Purpose Type
GG
Type
General Purpose Type
ML
Type
Low Feed Type
GL
Type
General Purpose Type
RG
Type
General Purpose Type
GG
Type
GL
Type
CG
Type
Handed Type
General Purpose Type
Low Feed Type
Good Chip Control
Good Chip ControlGood Chip Control
Good Chip Control
1st recommendation2nd recommendation3rd recommendation
G
Type
L
Type
General Purpose Type
Low Feed Type
GF
Type
Low Cutting Force Type
Improved
chip control
Improved
chip control
In Case of Unstable
Chip Shape
Reduce
Chattering
Reduce
Chattering
Chipping
Prevention
Prevent Nip
Formation
Improved
chip control
Chipping
Prevention
Copying
1st recommendation
2nd recommendation
Steel
Stainless Steel
Cast Iron
Exotic Alloy
AC530U
A
PVD
AC830P
A
CVD
AC520U
A
PVD
Insufficient Wear Resistance Insufficient Wear Resistance
Insufficient Wear Resistance
Insufficient Wear Resistance
AC530U
A
PVD
AC830P
A
CVD
AC520U
A
PVD
AC425K
A
CVD
AC520U
A
PVD
AC530U
A
PVD
Chipping Prevention
Chipping Prevention Chipping Prevention
Insufficient Wear Resistance Insufficient Wear Resistance
Insufficient Wear Resistance
Chipping Prevention
Chipping Prevention Chipping Prevention
Chipping Prevention
AC520U
A
PVD
AC530U
A
PVD
F14
F
Grooving Tools
Grooving
Cut-Off
Threading
SEC-Grooving Tools
GND
Series
For External Machining
MG ML GG GL GF RG CG
1.25
1. 5
2
3
1.25
1. 5
1. 5
1. 5
2
2
2
2
2
2
2
2
3
3
3
3
3
3
3
3
3
3
3
4
4
4
4
4
4
4
5
5
5
6
6
5 6
5 6
5 6
5 6
7
7
8
8
3
4
5 6
7 8
7 8
Turning / Copying Grooving / Cut-Off
GNDM
(Small Tools)
Straight Type
Shank Size (Height × Width)
Shank Size (Height × Width)
Shank Size (Height × Width)
Shank Size (Height × Width)
Shank Size (Height × Width)
Shank Size (Height × Width)
Shank Size (Height × Width)
F18,F46
GNDS
(Shallow Grooves)
Straight Type
F19
GNDM
Straight Type
F20,F42
GNDL
(Small Tools)
Straight Type
F18
GNDL
Straight Type
F22
GNDMS
Type
F20
GNDLS
Type
F22
Applicable Grooving Width (mm)
1.25 1.5 2.0
3.0 4.0 5.0
6.0 7.0 8.0
Applicable Grooving Width (mm)
1.25 1.5 2.0
3.0 4.0 5.0
6.0 7.0 8.0
Applicable Grooving Width (mm)
1.25 1.5 2.0
3.0 4.0 5.0
6.0 7.0 8.0
Applicable Grooving Width (mm)
1.25 1.5 2.0
3.0 4.0 5.0
6.0 7.0 8.0
Applicable Grooving Width (mm)
1.25 1.5 2.0
3.0 4.0 5.0
6.0 7.0 8.0
Applicable Grooving Width mm
1.25 1.5 2.0
3.0 4.0 5.0
6.0 7.0 8.0
Applicable Grooving Width (mm)
1.25 1.5 2.0
3.0 4.0 5.0
6.0 7.0 8.0
MG ML GG GL GF RG CG
Applicable Breaker
MG ML GG GL GF RG CG
Applicable Breaker
MG ML GG GL GF RG CG
Applicable Breaker
MG ML GG GL GF RG CG
Applicable Breaker
MG ML GG GL GF RG CG
Applicable Breaker
MG ML GG GL GF RG CG
Applicable Breaker
MG ML GG GL GF RG CG
Applicable Breaker
Applicable Chipbreaker
Shank Size
(mm)
Cutting width (mm)
Series
Max. Grooving Depth (mm)
Ref. Page
Height(h)
1.25
1. 5
2345678
5 1015202530
Width(b)
TypeSmall ToolsStraight TypeL Type
MG
Multi-functional General Purpose Type
ML
Multi-functional Low Feed Type
GG
Grooving General Purpose Type
GL
Grooving Low Feed Type
GF
Grooving Low Cutting Force Type
RG
Copying General Purpose Type
CG
Cut-Off Type
Stock * Made-to-order item (Shank Size 32×25mm) 1st recommendation 2nd recommendation
10 10
GNDL
GNDL
GNDL
GNDL
GNDL
GNDL
GNDM
GNDL
GNDM
GNDL
GNDM
GNDL
GNDS
GNDM
GNDL
GNDS
GNDM
GNDL
GNDS
GNDM
GNDL
GNDS
GNDM
GNDL
GNDM
GNDL
GNDM
GNDL
GNDM
GNDL
GNDM
GNDL
GNDM
GNDL
GNDLS
GNDMS
GNDLS
GNDMS
GNDMS
GNDLS
GNDMS
GNDLS
GNDMS
GNDLS
GNDMS
GNDLS
F18
F18
F18
F18
F18
F18
F19
F20
F22
F19
F20
F22
F19
F20
F22
F19
F20
F22
F20
F22
F20
F22
F20
F22
F20
F22
F20
F22
F22
F20
F22
F20
F20
F22
F20
F22
F20
F22
F20
F22
12 12
16 16
32
32
25
32
20
25
20
25
20 20
25
25
Small
Small
Small
Small
Small
Small
10
10
10
12.5
12.5
12.5
10
12.5
12
16
12
16
6
10
20
6
12
20
10
18
25
10
18
25
18
25
12
20
18
25
18
25
18
25
16
10
16
12
12
18
12
18
14
23
14
23
Series For External Machining
GNDL
Small
GNDL
Small
F18
F18
*
F15
F
Grooving Tools
Grooving
Cut-Off
Threading
SEC-Grooving Tools
GND
Series
For Internal Machining For Face Machining
2
3
3
3
3
3
3
3
4
4
4
4
4
4
4
5
5
5
5
5
5
6
6
6
6
6
6
8
8
8
8
8
6
6
6
6
2
3 4
5
5
5
6
3 4
3 4
Grooving / Turning / Copying Grooving / Turning / Copying
Shank Size (Height × Width) Shank Size (Height × Width)
Shank Diameter
ø
ø
ø
F30
GNDFS
Type
GNDI
Straight Type
F26 F29
GNDF
Straight Type
Applicable Grooving Width (mm)
1.25 1.5 2.0
3.0 4.0 5.0
6.0 7.0 8.0
Applicable Grooving Width (mm)
1.25 1.5 2.0
3.0 4.0 5.0
6.0 7.0 8.0
Applicable Grooving Width (mm)
1.25 1.5 2.0
3.0 4.0 5.0
6.0 7.0 8.0
MG ML GG GL GF RG CG
Applicable Breaker
MG ML GG GL GF RG CG
Applicable Breaker
MG ML GG GL GF RG CG
Applicable Breaker
MG ML GG GL GF RG CG
Applicable Insert Breaker
Shank Size
øD
s
(mm)
Cutting width (mm)
Series
Max. Grooving Depth (mm)
Min. Bore (mm)
Ref. Page
23456
5 1015202530
Stock 1st recommendation 2nd recommendation
ø32
ø40
ø25
ø32
ø40
ø25
ø32
ø40
ø40
GNDI
GNDI
GNDI
GNDI
GNDI
GNDI
GNDI
GNDI
GNDI
MG ML GG GL GF RG CG
Applicable Insert Breaker
Shank Size
(mm)
Cutting width (mm)
Series
Max. Grooving Depth (mm)
Bore (mm)
Ref. Page
Height(h)
345678
Width(b)
Stock Made-to-order item 1st recommendation 2nd recommendation Inserts and holders need modication in some cases.
20
25
20
25
20
25
20
25
GNDF
GNDF
GNDF
GNDF
GNDF
GNDF
GNDF
GNDF
GNDF
GNDF
GNDF
GNDF
GNDF
GNDF
GNDF
GNDF
GNDF
GNDF
GNDF
GNDF
GNDF
GNDF
GNDF
GNDF
GNDF
GNDFS
GNDFS
GNDFS
GNDFS
GNDFS
GNDFS
GNDFS
GNDFS
GNDFS
GNDFS
Series For Internal Machining
Series For Face Machining
6
ø32
ø32
ø50
ø40
ø32
ø50
ø50
ø35
ø45
ø40 ø55
ø40 ø55
ø50 ø70
ø50 ø70
ø50 ø70
ø50 ø75
ø65 ø100
ø65 ø90
ø65 ø90
ø70 ø110
ø70 ø100
ø100 ø200
ø100 ø200
ø90 ø150
ø125 ø200
ø125 ø200
ø85 ø130
ø85 ø130
ø140 ø200
ø40
ø40
10
6
12
12
18
18
18
18
18
18
23
23
23
23
23
23
23
23
23
23
23
23
23
23
23
23
23
20
20
20
20
20
20
20
20
20
20
10
11
6
10
11
11
10050 200 250 300150 1,000
5 1015202530
ø180 ø300
ø280 ø1,000
ø280 ø1,000
ø180 ø300
ø180 ø300
ø280 ø1,000
ø280 ø1,000
ø450 to
ø180 ø300
ø180 ø300
ø70 ø100
ø100 ø200
ø280 ø1,000
ø450 to
ø180 ø300
GNDI
GNDF
GNDF
GNDF
GNDF
GNDFS
GNDFS
F28
F26
F28
F28
F28
F30
F30
MG
Multi-functional General Purpose Type
ML
Multi-functional Low Feed Type
GG
Grooving General Purpose Type
GL
Grooving Low Feed Type
GF
Grooving Low cutting force Type
RG
Copying General Purpose Type
CG
Cut-Off Type
Type
Type
MG
Multi-functional General Purpose Type
ML
Multi-functional Low Feed Type
GG
Grooving General Purpose Type
GL
Grooving Low Feed Type
GF
Grooving Low cutting force Type
RG
Copying General Purpose Type
CG
Cut-Off Type
Straight Type
L Type
Straight Type
F16
F
Grooving Tools
Grooving
Cut-Off
Threading
Max. Dia.
Min. Bore
SEC-Grooving Tools
GND
Series
Key Points in Internal Machining
Key Points in Face Machining
Internal Machining External Machining
Chip shapes differ between internal and external machining
even under the same cutting condition.
Precautions for Internal Machining
Recommended Chipbreaker
ML GL
Precautions for Traversing
Recommended Chipbreaker
MG ML
Holder Selection
Precautions for Groove Expansion
Recommended Chipbreaker
MG ML GG GL GF
If the prepared hole diameter is small, use an type or type low-feed chipbreaker, each of which reduces chip curl diameter, to ensure adequate chip evacuation.
Considering the rigidity of the holder, we recommend machining from the outside to the inside.
MG ML GG
GG GG
GL
Select a holder so that the outer diameter of the first groove to be machined comes
within the range of maximum and minimum grooving diameter of the holder.
If the first groove meets the range of the effective grooving diameter, the grooving
diameter will not be limited for the second and later passes.
If the first groove meets the range of the effective grooving diameter in face traversing, the grooving diameter will not be limited for the second and later passes.
Select the chipbreaker of the lower limit side of the recommended cutting conditions and straighten chips before evacuation. (In face grooving,
broken chips easily get stuck in grooves, which causes problems.)
When breaking chips, step feed is required.
If the first groove meets the range of the effective grooving diameter during groove
expansion, the grooving diameter will not be limited for the second and later passes.
Min. Bore
Outer Side Inner Side
Cutting Point
Principal Force
Feed dir.
Inner Side Outer Side
Principal Force
Feed dir.
Cutting Point
If machining is performed toward the outside, the wall
thickness remaining on the principal force side will
become thinner, which reduces the rigidity of the holder.
Work Material: SCM415
Holder: GNDL R2525M-320 Insert: GCM N3002-GG
Cutting Conditions: v
c
=100m/min f =0.1mm/rev a
p
=5mm Wet
Work Material: SCM415 Bore Dia. Holder: GNDI R2532-T306 Insert: GCM N300
Cutting Conditions: v
c
=100m/min f =0.1mm/rev a
p
=3.0mm Wet
F17
F
Grooving Tools
Grooving
Cut-Off
Threading
SEC-Grooving Tools
GND
Series
SEC-Grooving Tools GND Type Important Notes
Precautions when Attaching Inserts
(1) Remove any dust and oil from the insert seat before attaching the insert.
(2) If there are scratches or burrs on the insert seat, scrape them away.
(3) Attach the insert by sliding it parallel along the seat.
(4) Clamp the insert with the opposite side (holder side) of the cutting edge pushed back to the stopper face.
(5) Tighten the insert with the recommended tightening torque. If you tighten the insert with excessive torque, the insert may be
broken,which may lead to injury.
Precautions when Setting Holders
(1) Remove any dust and oil from the tool post before setting the holder.
(2) If there are scratches or burrs on the tool post, scrape them away.
(3) Set the holder so that the insert becomes perpendicular to the workpiece. Failure to do so may result in chattering or a curved surface finish.
(4) The overhang of the holder should be as short as possible.
(5) When grooving or traversing, adjust the center height of the cutting edge to as close to ±0mm as possible. (Within ±0.1mm is recommended.)
Incorrect center height adjustment may cause chattering. In cut-off applications, adjust the center height of the cutting edge to a value from 0.0 to +0.2mm.
A lower center height will result in larger nip at the center.
Attach the insert in parallel with the seat Be sure to push the insert to the end
Attach the holder perpendicular to the workpiece
The overhang should be short
Tighten the insert with the recommended
tightening torque.
(Refer to the stock list of each holder.)
Slide the insert parallel
with the seat.
Stopper face
Overhang
Tool post
Precautions when Setting the Coolant Supply Nozzle
(1) Set the coolant supply nozzle so that coolant can be supplied
from the top of the upper clamp unit.
Supply coolant to the top of the upper clamp unit
Depth of Cut when Pulling Out with RG Chipbreaker
a
Cutting width
mm
Maximum Depth of
Cut when Pulling Out
mm
3.0
4.0
5.0
6.0
0.15
0.20
0.25
0.30
7.0 0.35
8.0 0.40
a
max
Work Material
Work Material
Centre Height 0 to +0.2mm
Center height adjustment in cut-off applications
F18
F
Grooving Tools
Grooving
Cut-Off
Threading
Spare Parts
Holders
Cat. No.
Stock Dimensions (mm)
Grooving Width
(mm)
Max. Grooving
Depth (mm)
a
r
Applicable Insert
Cap
Screw
Recommended
Tightening
Torque
N m
Spanner
hbL
1
fh
1
L
2
ew
GNDM R/L1616JX-1.510
16 16 120 (16) 16
26 0 1.5 10
GCM N150005-GF
BX0515 4.0 LH040
GNDM R/L1616JX-212
16 16 120 (16) 16 30 0 2.0 12
GCM 20 -
GNDM R/L1616JX-312
16 16 120 (16) 16 30 0 3.0 12
GCM 30 -
Select holders and inserts with the same grooving widths (
w
). Refer to F19 for applicable inserts.
SEC-External Grooving Tools (Small Tools)
GNDM / GNDL
Type (Zero Off-set)
External Multi-purpose Small Tools Type (Grooving, Turning, and Copying)
External Grooving (Small Tools)
GNDM
External
L
2
h
w
e
1
L
r
a
1
h
b
f
Above figures show right hand tools
Recommended Cutting Conditions GNDM Small Tools /GNDL Small Tools /GNDS
Work Material
P
Carbon Steel / Alloy Steel
M
Stainless Steel
K
Cast Iron
S
Exotic Alloy
Grade
AC830P AC520U AC530U AC830P AC520U AC530U AC425K AC520U AC530U AC520U AC530U
Cutting Speed v
c
(m/min)
80 to 200 80 to 200 50 to 200 70 to 150 70 to 150 50 to 150 80 to 200 60 to 200 50 to 200 20 to 80 20 to 60
Grooving / Cut-Off
Breaker
Feed Rate f mm/rev
MG ML GG GL GF RG CG
Grooving
Widths
w
(mm)
1.25
−−−−
0.01 to 0.08
−−
1.5
−−−−
0.02 to 0.10
−−
2.0
−−
0.05 to 0.25 0.03 to 0.15 0.03 to 0.12
−
0.05 to 0.20
3.0
0.08 to 0.20 0.03 to 0.15 0.10 to 0.30 0.05 to 0.18 0.05 to 0.15 0.05 to 0.15 0.08 to 0.25
4.0
0.10 to 0.25 0.05 to 0.20 0.15 to 0.35 0.08 to 0.22 0.05 to 0.18 0.10 to 0.20 0.10 to 0.30
5.0
0.12 to 0.30 0.08 to 0.25 0.20 to 0.40 0.10 to 0.25 0.08 to 0.20 0.15 to 0.25
−
6.0
0.15 to 0.35 0.10 to 0.30 0.20 to 0.45 0.12 to 0.30 0.10 to 0.25 0.20 to 0.30
−
Turning
Breaker
MG ML RG
Feed Rate f
(mm/rev)
Depth of Cut a
p
(mm)
Feed Rate f
(mm/rev)
Depth of Cut a
p
(mm)
Feed Rate f
(mm/rev)
Depth of Cut a
p
(mm)
Grooving
Widths
w
(mm)
3.0
0.08 to 0.25 0.4 to 1.5 0.05 to 0.18 0.3 to 1.5 0.10 to 0.40 0.3 to 1.2
4.0
0.10 to 0.30 0.5 to 2.0 0.05 to 0.20 0.4 to 2.0 0.15 to 0.45 0.6 to 1.6
5.0
0.12 to 0.35 0.8 to 2.5 0.08 to 0.25 0.5 to 2.5 0.20 to 0.50 0.8 to 2.0
6.0
0.15 to 0.40 1.0 to 3.0 0.10 to 0.30 0.5 to 3.0 0.30 to 0.60 1.0 to 2.2
*
Use the multi-purpose copying
insert for turning (wide grooves).
External Grooving / Cut-Off Small Tools
External Grooving (Small Tools)
GNDL
Spare Parts
Holders
BFTX0412N
BX0515
LT15-10
LH040
Cat. No.
Stock Dimensions (mm)
Grooving Width
(mm)
Max. Grooving
Depth (mm)
a
r
Fig.
Applicable Insert
Cap
Screw
Recommended
Tightening
Torque
N m
Spanner
hbL
1
fh
1
h
2
L
2
L
3
ew
GNDL R/L1010JX-1.2510
10 10 120 (10) 10 2.0 18
18.3
0 1.25 10.0
1
GCM N125005-GF
BFTX0412N
3.0 LT15-10
GNDL R/L1010JX-1.510
10 10 120 (10) 10 2.0 18
18.3
0 1.50 10.0
GCM N150005-GF
GNDL R/L1010JX-210
10 10 120 (10) 10 2.0 22
22.3
0 2.00 10.0
GCM 20 -
GNDL R/L1010JX-310
10 10 120 (10) 10 2.0 22
22.3
0 3.00 10.0
GCM 30 -
GNDL R/L1212JX-1.2512
12 12 120 (12) 12 2.0 19
19.3
0 1.25 12.0
1
GCM N125005-GF
BFTX0412N
3.0 LT15-10
GNDL R/L1212JX-1.512
12 12 120 (12) 12 2.0 19
19.3
0 1.50 12.0
GCM N150005-GF
GNDL R/L1212JX-212.5
12 12 120 (12) 12 2.0 22
22.3
0 2.00 12.5
GCM 20 -
GNDL R/L1212JX-312.5
12 12 120 (12) 12 2.0 22
22.3
0 3.00 12.5
GCM 30 -
GNDL R/L1616JX-1.512.5
16 16 120 (16) 16 28 0 1.50 12.5
2
GCM N150005-GF
BX0515 4.0 LH040
GNDL R/L1616JX-216
16 16 120 (16) 16 32 0 2.00 16.0
GCM 20 -
GNDL R/L1616JX-316
16 16 120 (16) 16 32 0 3.00 16.0
GCM 30 -
Select holders and inserts with the same grooving widths (
w
). Refer to F19 for applicable inserts.
External
Above figures show right hand tools
Fig. 2
w
e
w
e
1
h
2
h
3
L
2
L
1
L
h
b
f
f
r
a
r
a
1
L
b
2
L
1
h
h
Fig. 1
F19
F
Grooving Tools
Grooving
Cut-Off
Threading
Spare Parts
Holders
Cat. No.
Stock Dimensions (mm)
Grooving Width (mm)
Max. Grooving Depth (mm)
a
r
Applicable Insert
Cap
Screw
Recommended
Tightening
Torque
N m
Spanner
hbL
1
fh
1
L
2
w
GNDS R/L2020K-206
20 20 125 20 20
30 2.0 6
GCM 20 -
BX0520 5.0 LH040
GNDS R/L2020K-306
20 20 125 20 20 30 3.0 6
GCM 30 -
GNDS R/L2020K-410
20 20 125 20 20 34 4.0 10
GCM 40 -
GNDS R/L2020K-510
20 20 125 20 20 34 5.0 10
GCM N50 -
GNDS R/L2020K-610
20 20 125 20 20 34 6.0 10
GCM N60 -
GNDS R/L2525M-206
25 25 150 25 25 30 2.0 6
GCM 20 -
GNDS R/L2525M-306
25 25 150 25 25 30 3.0 6
GCM 30 -
GNDS R/L2525M-410
25 25 150 25 25 34 4.0 10
GCM 40 -
GNDS R/L2525M-510
25 25 150 25 25 34 5.0 10
GCM N50 -
GNDS R/L2525M-610
25 25 150 25 25 34 6.0 10
GCM N60 -
Select holders and inserts with the same grooving widths (w).
SEC-External Grooving Tools
GNDS
Series
GNDM Small Tools / GNDL Small Tools / GNDS Insert
Application
Shape
Appearance
Cat. No.
Coated Carbide Dimensions (mm)
Pcs./
Pack
Fig.
AC830P AC425K AC520U AC530U
w
s
Cutting width
Tolerance
Grooving / Turning
Fig. 1
W
S
MG
Type
Type
General Purpose Type
GCM N3004-MG
3.0 ±0.03 0.4 21.1 3.8
51
GCM N4008-MG
4.0 ±0.03 0.8 26.4 4.0
GCM N5008-MG
5.0 ±0.03 0.8 26.4 4.1
GCM N6008-MG
6.0 ±0.03 0.8 26.4 4.5
ML
ML
Type
Type
Low Feed Type
Low Feed Type
w
w
=~4.0mm
=~4.0mm
w
w
=5.0mm~
=5.0mm~
GCM N3002-ML
3.0 ±0.03 0.2 21.1 3.8
51
GCM N4004-ML
4.0 ±0.03 0.4 26.4 4.0
GCM N5004-ML
5.0 ±0.03 0.4 26.4 4.1
GCM N6004-ML
6.0 ±0.03 0.4 26.4 4.5
Grooving Cut-Off
Fig. 1
W
S
GG
Type
General Purpose Type
GCM N2002-GG
2.0 ±0.03 0.2 21.1 3.6
51
GCM N3002-GG
3.0 ±0.03 0.2 21.1 3.8
GCM N4002-GG
4.0 ±0.03 0.2 26.4 4.0
GCM N5002-GG
5.0 ±0.03 0.2 26.4 4.1
GCM N6002-GG
6.0 ±0.03 0.2 26.4 4.5
GCM N3004-GG
3.0 ±0.03 0.4 21.1 3.8
51
GCM N4004-GG
4.0 ±0.03 0.4 26.4 4.0
GCM N5004-GG
5.0 ±0.03 0.4 26.4 4.1
GCM N6004-GG
6.0 ±0.03 0.4 26.4 4.5
GL
Type
Type
Low Feed Type
GCM N2002-GL
2.0 ±0.03 0.2 21.1 3.6
51
GCM N3002-GL
3.0 ±0.03 0.2 21.1 3.8
GCM N4002-GL
4.0 ±0.03 0.2 26.4 4.0
GCM N5002-GL
5.0 ±0.03 0.2 26.4 4.1
GCM N6002-GL
6.0 ±0.03 0.2 26.4 4.5
GF
Type
Low Cutting Force Type
GCM N125005-GF
1.25 ±0.03 0.05 17.4 3.2
51
GCM N150005-GF
1.5 ±0.03 0.05 17.4 3.7
GCM N2002-GF
2.0 ±0.03 0.2 21.1 3.6
GCM N3002-GF
3.0 ±0.03 0.2 21.1 3.8
GCM N4002-GF
4.0 ±0.03 0.2 26.4 4.0
GCM N5002-GF
5.0 ±0.03 0.2 26.4 4.1
GCM N6002-GF
6.0 ±0.03 0.2 26.4 4.5
Copying
Fig. 2
W
S
RG
Type
Type
General Purpose Type
GCM N3015-RG
3.0 ±0.03 1.5 21.1 3.8
52
GCM N4020-RG
4.0 ±0.03 2.0 26.4 4.0
GCM N5025-RG
5.0 ±0.03 2.5 27.2 4.1
GCM N6030-RG
6.0 ±0.03 3.0 27.5 4.5
Application
Shape
Appearance
Cat. No.
Coated Carbide Dimensions (mm)
Pcs./
Pack
Fig.
AC830P AC425K AC520U AC530U
w
s
RLRLRLRL
Cutting width
Tolerance
Cut-Off
Fig. 3
Drawing shows a right hand tool.
5°
w
s
4-
CG
Type
Type
General Purpose Type
GCM R/L2002-CG-05
2.0 ±0.03 0.2 21.1 3.6
53
GCM R/L3002-CG-05
3.0 ±0.03 0.2 21.3 3.8
GCM R/L4002-CG-05
4.0 ±0.03 0.2 26.7 4.0
Select holders and inserts with the same grooving widths (w).
Recommended Cutting Conditions
F18
*
Use the multi-purpose copying
insert for turning (wide grooves).
External Multi-purpose Shallow Grooves Type (Grooving, Turning, and Copying)
External Grooving
GNDS
External
e
1
h
r
a
f
2
L
w
1
L
b
h
Above figures show right hand tools
mark: Standard stocked item (expanded item)
F20
F
Grooving Tools
Grooving
Cut-Off
Threading
Spare Parts
Holders
Cat. No.
Stock Dimensions (mm)
Grooving Width (mm)
Max. Grooving Depth (mm)
a
r
Applicable Insert
Cap
Screw
Recommended
Tightening
Torque
N m
Spanner
hbL
1
fh
1
L
2
w
GNDMS R/L2020K-310
20 20 125 32 20 25 3.0 10
GCM 30 -
BX0520 5.0 LH040
GNDMS R/L2020K-412
20 20 125 34 20 25 4.0 12
GCM 40 -
GNDMS R/L2020K-512
20 20 125 34 20 25 5.0 12
GCM N50 -
GNDMS R/L2525M-312
25 25 150 39 25 25 3.0 12
GCM 30 -
GNDMS R/L2525M-414
25 25 150 41 25 25 4.0 14
GCM 40 -
GNDMS R/L2525M-514
25 25 150 41 25 25 5.0 14
GCM N50 -
GNDMS R/L2525M-614
25 25 150 41 25 25 6.0 14
GCM N60 -
Select holders and inserts with the same grooving widths (
w
). Refer to F21 for applicable inserts.
Spare Parts
Holders
Cat. No.
Stock Dimensions (mm)
Grooving Width (mm)
Max. Grooving Depth (mm)
a
r
Applicable Insert
Cap
Screw
Recommended
Tightening
Torque
N m
Spanner
hbL
1
fh
1
L
2
w
GNDM R/L2020K-210
20 20 125 20 20
33.6 2.0 10
GCM 20 -
BX0520 5.0 LH040
GNDM R/L2020K-312
20 20 125 20 20 36.6 3.0 12
GCM 30 -
GNDM R/L2020K-418
20 20 125 20 20 45.0 4.0 18
GCM 40 -
GNDM R/L2020K-518
20 20 125 20 20 45.0 5.0 18
GCM N50 -
GNDM R/L2020K-618
20 20 125 20 20 45.0 6.0 18
GCM N60 -
GNDM R/L2525M-210
25 25 150 25 25 33.6 2.0 10
GCM 20 -
GNDM R/L2525M-312
25 25 150 25 25 36.6 3.0 12
GCM 30 -
GNDM R/L2525M-418
25 25 150 25 25 45.0 4.0 18
GCM 40 -
GNDM R/L2525M-518
25 25 150 25 25 45.0 5.0 18
GCM N50 -
GNDM R/L2525M-618
25 25 150 25 25 45.0 6.0 18
GCM N60 -
GNDM R/L3225P-312
32 25 170 25 32 36.6 3.0 12
GCM 30 -
GNDM R/L3225P-418
32 25 170 25 32 45.0 4.0 18
GCM 40 -
GNDM R/L3225P-518
32 25 170 25 32 45.0 5.0 18
GCM N50 -
GNDM R/L3225P-618
32 25 170 25 32 45.0 6.0 18
GCM N60 -
GNDM R/L3225P-718
32 25 170 25 32 50.0 7.0 18
GCM N70 -
BX0620 6.0 LH050
GNDM R/L3225P-818
32 25 170 25 32 50.0 8.0 18
GCM N80 -
GNDM R/L3232P-312
32 32 170 32 32 36.6 3.0 12
GCM 30 -
BX0620 6.0 LH050
GNDM R/L3232P-418
32 32 170 32 32 45.0 4.0 18
GCM 40 -
GNDM R/L3232P-518
32 32 170 32 32 45.0 5.0 18
GCM N50 -
GNDM R/L3232P-618
32 32 170 32 32 45.0 6.0 18
GCM N60 -
GNDM R/L3232P-718
32 32 170 32 32 50.0 7.0 18
GCM N70 -
GNDM R/L3232P-818
32 32 170 32 32 50.0 8.0 18
GCM N80 -
Select holders and inserts with the same grooving widths (
w
). Refer to F21 for applicable inserts.
SEC-External Grooving Tools
GNDM / GNDMS
Type
External Multi-purpose Type (Grooving, Turning, and Copying)
GNDM
External Grooving
* Use the multi-purpose copying
insert for turning (wide grooves).
External
1
L
2
L
r
a
1
h
h
b
w
f
Above figures show right hand tools
External L-Styled (Side Cut) Multi-purpose Type (Grooving, Turning, and Copying)
GNDMS
External Grooving
*
Use the multi-purpose copying
insert for turning (wide grooves).
External
Above figures show right hand tools
1
h
r
a
f
2
L
w
1
L
b
h
F21
F
Grooving Tools
Grooving
Cut-Off
Threading
SEC-Grooving Tools
GNDM / GNDMS Type
For GNDM / GNDMS
Application
Shape Appearance Cat. No.
Coated Carbide Dimensions (mm)
Pcs./
Pack
Fig.
AC830P AC425K AC520U AC530U
w
s
Cutting width
Tolerance
Grooving / Turning
Fig. 1
W
S
MG
Type
General Purpose Type
GCM N3004-MG
3.0 ±0.03 0.4 21.1 3.8
51
GCM N4008-MG
4.0 ±0.03 0.8 26.4 4.0
GCM N5008-MG
5.0 ±0.03 0.8 26.4 4.1
GCM N6008-MG
6.0 ±0.03 0.8 26.4 4.5
GCM N7008-MG
7.0 ±0.04 0.8 28.75 5.5
GCM N8008-MG
8.0 ±0.04 0.8 28.75 6.0
w=~4.0mm
w=5.0mm~
ML
Type
Low Feed Type
GCM N3002-ML
3.0 ±0.03 0.2 21.1 3.8
51
GCM N4004-ML
4.0 ±0.03 0.4 26.4 4.0
GCM N5004-ML
5.0 ±0.03 0.4 26.4 4.1
GCM N6004-ML
6.0 ±0.03 0.4 26.4 4.5
GCM N7004-ML
7.0 ±0.04 0.4 28.75 5.5
GCM N8004-ML
8.0 ±0.04 0.4 28.75 6.0
Grooving / Cut-Off
Fig. 1
W
S
GG
Type
General Purpose Type
GCM N2002-GG
2.0 ±0.03 0.2 21.1 3.6
51
GCM N3002-GG
3.0 ±0.03 0.2 21.1 3.8
GCM N4002-GG
4.0 ±0.03 0.2 26.4 4.0
GCM N5002-GG
5.0 ±0.03 0.2 26.4 4.1
GCM N6002-GG
6.0 ±0.03 0.2 26.4 4.5
GCM N3004-GG
3.0 ±0.03 0.4 21.1 3.8
51
GCM N4004-GG
4.0 ±0.03 0.4 26.4 4.0
GCM N5004-GG
5.0 ±0.03 0.4 26.4 4.1
GCM N6004-GG
6.0 ±0.03 0.4 26.4 4.5
GCM N7004-GG
7.0 ±0.04 0.4 28.75 5.5
GCM N8004-GG
8.0 ±0.04 0.4 28.75 6.0
GL
Type
Low Feed Type
GCM N2002-GL
2.0 ±0.03 0.2 21.1 3.6
51
GCM N3002-GL
3.0 ±0.03 0.2 21.1 3.8
GCM N4002-GL
4.0 ±0.03 0.2 26.4 4.0
GCM N5002-GL
5.0 ±0.03 0.2 26.4 4.1
GCM N6002-GL
6.0 ±0.03 0.2 26.4 4.5
GCM N7004-GL
7.0 ±0.04 0.4 28.75 5.5
GCM N8004-GL
8.0 ±0.04 0.4 28.75 6.0
GF
Type
Low cutting force Type
GCM N2002-GF
2.0 ±0.03 0.2 21.1 3.6
51
GCM N3002-GF
3.0 ±0.03 0.2 21.1 3.8
GCM N4002-GF
4.0 ±0.03 0.2 26.4 4.0
GCM N5002-GF
5.0 ±0.03 0.2 26.4 4.1
GCM N6002-GF
6.0 ±0.03 0.2 26.4 4.5
Copying
Fig. 2
W
S
RG
Type
General Purpose Type
GCM N3015-RG
3.0 ±0.03 1.5 21.1 3.8
52
GCM N4020-RG
4.0 ±0.03 2.0 26.4 4.0
GCM N5025-RG
5.0 ±0.03 2.5 27.2 4.1
GCM N6030-RG
6.0 ±0.03 3.0 27.5 4.5
GCM N7035-RG
7.0 ±0.04 3.5 29.05 5.5
GCM N8040-RG
8.0 ±0.04 4.0 29.25 6.0
Application
Shape Appearance Cat. No.
Coated Carbide Dimensions (mm)
Pcs./
Pack
Fig.
AC830P AC425K AC520U AC530U
w
s
RLRLRLRL
Cutting width
Tolerance
Cut-Off
Fig. 3 Drawing shows a right hand tool.
5°
w
s
4-
CG
Type
General Purpose Type
GCM R/L2002-CG-05
2.0 ±0.03 0.2 21.1 3.6
53
GCM R/L3002-CG-05
3.0 ±0.03 0.2 21.3 3.8
GCM R/L4002-CG-05
4.0 ±0.03 0.2 26.7 4.0
Select holders and inserts with the same grooving widths (
w
).
Recommended Cutting Conditions
Work Material
P
Carbon Steel Alloy Steel
M
Stainless Steel
K
Cast Iron
S
Exotic Alloy
Grade
AC830P AC520U AC530U AC830P AC520U AC530U AC425K AC520U AC530U AC520U AC530U
Cutting Speed v
c
80 to 200 80 to 200 50 to 200 70 to 150 70 to 150 50 to 150 80 to 200 60 to 200 50 to 200 20 to 80 20 to 60
Grooving / Cut-Off
Breaker
Feed Rate f
MG ML GG GL GF RG CG
Grooving
Widths
w
(mm)
2.0
− − 0.05 to 0.25 0.03 to 0.15 0.03 to 0.12 − 0.05 to 0.20
3.0
0.08 to 0.20 0.03 to 0.15 0.10 to 0.30 0.05 to 0.18 0.05 to 0.15 0.05 to 0.15 0.08 to 0.25
4.0
0.10 to 0.25 0.05 to 0.20 0.15 to 0.35 0.08 to 0.22 0.05 to 0.18 0.10 to 0.20 0.10 to 0.30
5.0
0.12 to 0.30 0.08 to 0.25 0.20 to 0.40 0.10 to 0.25 0.08 to 0.20 0.15 to 0.25 −
6.0
0.15 to 0.35 0.10 to 0.30 0.20 to 0.45 0.12 to 0.30 0.10 to 0.25 0.20 to 0.30 −
7.0
0.18 to 0.40 0.12 to 0.35 0.20 to 0.50 0.15 to 0.35 − 0.25 to 0.35 −
8.0
0.20 to 0.45 0.15 to 0.40 0.20 to 0.55 0.18 to 0.40 − 0.35 to 0.40 −
Turning
Breaker
MG ML RG
Feed Rate f
Depth of Cut a
p
Feed Rate f
Depth of Cut a
p
Feed Rate f
Depth of Cut a
p
Grooving
Widths
w
(mm)
3.0
0.08 to 0.25
0.4 to 1.5
0.05 to 0.18
0.3 to 1.5
0.10 to 0.40
0.3 to 1.2
4.0
0.10 to 0.30
0.5 to 2.0
0.05 to 0.20
0.4 to 2.0
0.15 to 0.45
0.6 to 1.6
5.0
0.12 to 0.35
0.8 to 2.5
0.08 to 0.25
0.5 to 2.5
0.20 to 0.50
0.8 to 2.0
6.0
0.15 to 0.40
1.0 to 3.0
0.10 to 0.30
0.5 to 3.0
0.30 to 0.60
1.0 to 2.2
7.0
0.18 to 0.45
1.2 to 3.5
0.12 to 0.35
0.7 to 3.5
0.35 to 0.65
1.2 to 2.5
8.0
0.20 to 0.50
1.5 to 4.0
0.15 to 0.40
0.7 to 4.0
0.35 to 0.70
1.5 to 3.0
mark : Standard stocked item (expanded item)
F22
F
Grooving Tools
Grooving
Cut-Off
Threading
SEC-External Grooving Tools
GNDL / GNDLS
Type
External Deep Grooving & Cut-Off
External Grooving
GNDL
Spare Parts
Holders
Cat. No.
Stock Dimensions (mm)
Grooving Width
(mm)
Max. Grooving
Depth (mm)
a
r
Applicable Insert
Cap
Screw
Recommended
Tightening
Torque
N m
Spanner
hbL
1
fh
1
L
2
w
GNDL R/L2020K-220
20 20 125 20 20 44.5 2.0 20
GCM 20 -
BX0520 5.0 LH040
GNDL R/L2020K-320
20 20 125 20 20 44.5 3.0 20 18
GCM 30 -
GNDL R/L2020K-425
20 20 125 20 20 50.0 4.0 25 23
GCM 40 -
GNDL R/L2020K-525
20 20 125 20 20 50.0 5.0 25 23
GCM N50 -
GNDL R/L2020K-625
20 20 125 20 20 50.0 6.0 25 23
GCM N60 -
GNDL R/L2525M-220
25 25 150 25 25 44.5 2.0 20
GCM 20 -
GNDL R/L2525M-320
25 25 150 25 25 44.5 3.0 20 18
GCM 30 -
GNDL R/L2525M-425
25 25 150 25 25 50.0 4.0 25 23
GCM 40 -
GNDL R/L2525M-525
25 25 150 25 25 50.0 5.0 25 23
GCM N50 -
GNDL R/L2525M-625
25 25 150 25 25 50.0 6.0 25 23
GCM N60 -
GNDL R/L3225P-320
32 25 170 25 32 44.5 3.0 20 18
GCM 30 -
GNDL R/L3225P-425
32 25 170 25 32 50.0 4.0 25 23
GCM 40 -
GNDL R/L3225P-525
32 25 170 25 32 50.0 5.0 25 23
GCM N50 -
GNDL R/L3225P-625
32 25 170 25 32 50.0 6.0 25 23
GCM N60 -
GNDL R/L3225P-725
32 25 170 25 32 50.0 7.0 25 23
GCM N70 -
BX0620 6.0 LH050
GNDL R/L3225P-825
32 25 170 25 32 50.0 8.0 25 23
GCM N80 -
GNDL R/L3232P-320
32 32 170 32 32 44.5 3.0 20 18
GCM 30 -
BX0620 6.0 LH050
GNDL R/L3232P-425
32 32 170 32 32 50.0 4.0 25 23
GCM 40 -
GNDL R/L3232P-525
32 32 170 32 32 50.0 5.0 25 23
GCM N50 -
GNDL R/L3232P-625
32 32 170 32 32 50.0 6.0 25 23
GCM N60 -
GNDL R/L3232P-725
32 32 170 32 32 50.0 7.0 25 23
GCM N70 -
GNDL R/L3232P-825
32 32 170 32 32 50.0 8.0 25 23
GCM N80 -
Select holders and inserts with the same grooving widths (
w
). Dimensions in parentheses under maximum grooving depth are for applications that use copying inserts (RG Type Breakers).
Refer to F23 for applicable inserts.
External
Above figures show right hand tools
External L-Styled (Side Cut) Grooving
External Grooving
GNDLS
Spare Parts
Holders
Cat. No.
Stock Dimensions (mm)
Grooving Width
(mm)
Max. Grooving
Depth (mm)
a
r
Applicable Insert
Cap
Screw
Recommended
Tightening
Torque
N m
Spanner
hbL
1
fh
1
L
2
w
GNDLS R/L2020K-216
20 20 125 38 20 25 2.0 16
GCM 20 -
BX0520 5.0 LH040
GNDLS R/L2020K-316
20 20 125 38 20 25 3.0 16
GCM 30 -
GNDLS R/L2525M-218
25 25 150 45 25 25 2.0 18
GCM 20 -
GNDLS R/L2525M-318
25 25 150 45 25 25 3.0 18
GCM 30 -
GNDLS R/L2525M-423
25 25 150 50 25 25 4.0 23
GCM 40 -
GNDLS R/L2525M-523
25 25 150 50 25 25 5.0 23
GCM N50 -
GNDLS R/L2525M-623
25 25 150 50 25 25 6.0 23
GCM N60 -
Select holders and inserts with the same grooving widths (
w
). Refer to F23 for applicable inserts.
External
Above figures show right hand tools
r
a
1
h
f
w
2
L
1
L
h
b
1
h
r
a
f
2
L
w
1
L
b
h
F23
F
Grooving Tools
Grooving
Cut-Off
Threading
SEC-Grooving Tools
GNDL / GNDLS
Type
For GNDL/GNDLS
Application
Shape Appearance Cat. No.
Coated Carbide Dimensions (mm)
Pcs./
Pack
Fig.
AC830P AC425K AC520U AC530U
w
s
Cutting width
Tolerance
Grooving / Turning
Fig. 1
W
S
MG
Type
General Purpose Type
GCM N3004-MG
3.0 ±0.03 0.4 21.1 3.8
51
GCM N4008-MG
4.0 ±0.03 0.8 26.4 4.0
GCM N5008-MG
5.0 ±0.03 0.8 26.4 4.1
GCM N6008-MG
6.0 ±0.03 0.8 26.4 4.5
GCM N7008-MG
7.0 ±0.04 0.8 28.75 5.5
GCM N8008-MG
8.0 ±0.04 0.8 28.75 6.0
w=~4.0mm
w=5.0mm~
ML
Type
Type
Low Feed Type
GCM N3002-ML
3.0 ±0.03 0.2 21.1 3.8
51
GCM N4004-ML
4.0 ±0.03 0.4 26.4 4.0
GCM N5004-ML
5.0 ±0.03 0.4 26.4 4.1
GCM N6004-ML
6.0 ±0.03 0.4 26.4 4.5
GCM N7004-ML
7.0 ±0.04 0.4 28.75 5.5
GCM N8004-ML
8.0 ±0.04 0.4 28.75 6.0
Grooving Cut-Off
Fig. 1
W
S
GG
Type
General Purpose Type
GCM N2002-GG
2.0 ±0.03 0.2 21.1 3.6
51
GCM N3002-GG
3.0 ±0.03 0.2 21.1 3.8
GCM N4002-GG
4.0 ±0.03 0.2 26.4 4.0
GCM N5002-GG
5.0 ±0.03 0.2 26.4 4.1
GCM N6002-GG
6.0 ±0.03 0.2 26.4 4.5
GCM N3004-GG
3.0 ±0.03 0.4 21.1 3.8
51
GCM N4004-GG
4.0 ±0.03 0.4 26.4 4.0
GCM N5004-GG
5.0 ±0.03 0.4 26.4 4.1
GCM N6004-GG
6.0 ±0.03 0.4 26.4 4.5
GCM N7004-GG
7.0 ±0.04 0.4 28.75 5.5
GCM N8004-GG
8.0 ±0.04 0.4 28.75 6.0
GL
Type
Low Feed Type
GCM N2002-GL
2.0 ±0.03 0.2 21.1 3.6
51
GCM N3002-GL
3.0 ±0.03 0.2 21.1 3.8
GCM N4002-GL
4.0 ±0.03 0.2 26.4 4.0
GCM N5002-GL
5.0 ±0.03 0.2 26.4 4.1
GCM N6002-GL
6.0 ±0.03 0.2 26.4 4.5
GCM N7004-GL
7.0 ±0.04 0.4 28.75 5.5
GCM N8004-GL
8.0 ±0.04 0.4 28.75 6.0
GF
Type
Low cutting force Type
GCM N2002-GF
2.0 ±0.03 0.2 21.1 3.6
51
GCM N3002-GF
3.0 ±0.03 0.2 21.1 3.8
GCM N4002-GF
4.0 ±0.03 0.2 26.4 4.0
GCM N5002-GF
5.0 ±0.03 0.2 26.4 4.1
GCM N6002-GF
6.0 ±0.03 0.2 26.4 4.5
Copying
Fig. 2
W
S
RG
Type
General Purpose Type
GCM N3015-RG
3.0 ±0.03 1.5 21.1 3.8
52
GCM N4020-RG
4.0 ±0.03 2.0 26.4 4.0
GCM N5025-RG
5.0 ±0.03 2.5 27.2 4.1
GCM N6030-RG
6.0 ±0.03 3.0 27.5 4.5
GCM N7035-RG
7.0 ±0.04 3.5 29.05 5.5
GCM N8040-RG
8.0 ±0.04 4.0 29.25 6.0
Application
Shape Appearance Cat. No.
Coated Carbide Dimensions (mm)
Pcs./
Pack
Fig.
AC830P AC425K AC520U AC530U
w
s
RLRLRLRL
Cutting width
Tolerance
Cut-Off
Fig. 3
Drawing shows a right hand tool.
5°
w
s
4-
CG
Type
Type
General Purpose Type
GCM R/L2002-CG-05
2.0 ±0.03 0.2 21.1 3.6
53
GCM R/L3002-CG-05
3.0 ±0.03 0.2 21.3 3.8
GCM R/L4002-CG-05
4.0 ±0.03 0.2 26.7 4.0
Select holders and inserts with the same grooving widths (w).
Recommended Cutting Conditions (GNDL/GNDLS)
Work Material
P
Carbon Steel / Alloy Steel
M
Stainless Steel
K
Cast Iron
S
Exotic Alloy
Grade
AC830P AC520U AC530U AC830P AC520U AC530U AC425K AC520U AC530U AC520U AC530U
Cutting Speed v
c
(m/min)
80 to 200 80 to 200 50 to 200 70 to 150 70 to 150 50 to 150 80 to 200 60 to 200 50 to 200 20 to 80 20 to 60
Grooving / Cut-Off
Breaker
Feed Rate f mm/rev
MG ML GG GL GF RG CG
Grooving
Widths
w
(mm)
2.0 − − 0.05 to 0.25 0.03 to 0.15 0.03 to 0.12 − 0.05 to 0.20
3.0 0.08 to 0.20 0.03 to 0.15 0.10 to 0.30 0.05 to 0.18 0.05 to 0.15 0.05 to 0.15 0.08 to 0.25
4.0 0.10 to 0.25 0.05 to 0.20 0.15 to 0.35 0.08 to 0.22 0.05 to 0.18 0.10 to 0.20 0.10 to 0.30
5.0 0.12 to 0.30 0.08 to 0.25 0.20 to 0.40 0.10 to 0.25 0.08 to 0.20 0.15 to 0.25 −
6.0 0.15 to 0.35 0.10 to 0.30 0.20 to 0.45 0.12 to 0.30 0.10 to 0.25 0.20 to 0.30 −
7.0 0.18 to 0.40 0.12 to 0.35 0.20 to 0.50 0.15 to 0.35 − 0.25 to 0.35 −
8.0 0.20 to 0.45 0.15 to 0.40 0.20 to 0.55 0.18 to 0.40 − 0.35 to 0.40 −
mark: Standard stocked item (expanded item)
F24
F
Grooving Tools
Grooving
Cut-Off
Threading
Spare Parts
Holders
Cat. No.
Stock Holder Dimensions (mm)
Grooving Width
(mm)
Max. Grooving
Depth
mm
Applicable
Insert
Clamp Clamp Bolt Spring Spanner
hbL
1
fh
1
L
2
w
SGE R/L1016-3
10 16 120
15.7
10 19.5
3.0
6.2
GEN30 GCL R/L-3
FBH 0516NT
GSP-5 LH025NT
SGE R/L1216-3
12 16 120
15.7
12 19.5
SGE R/L1616-3
16 16 120
15.7
16 22.0
8.0
FBH 0520NT
SGE R/L2020-3
20 20 120
19.7
20 22.0
SGE R/L1016-45
10 16 120
15.7
10 19.5
4.0
5.0
6.2
GEN40
GEN50
GCL R/L-4
FBH 0516NT
SGE R/L1216-45
12 16 120
15.7
12 19.5
SGE R/L1616-45
16 16 120
15.7
16 22.0
8.0
FBH 0520NT
SGE R/L2020-45
20 20 120
19.7
20 22.0
SGE R/L1020-6
10 20 120
19.7
10 19.5
6.0
6.2
GEN60 GCL R/L-6
FBH 0516NT
SGE R/L1220-6
12 20 120
19.7
12 19.5
SGE R/L1620-6
16 20 120
19.7
16 22.0
8.0
FBH 0520NT
SGE R/L2020-6
20 20 120
19.7
20 22.0
* Reference for " " taken when " " = 4.0mm. When " " = 5.0mm, " " is larger by 0.5mm.
External Shallow Grooves
Inserts
s
4-
w 0.025
Cat. No.
Coated Carbide
Dimensions (mm)
Applicable Holder
ACZ150
w s
GEN 3002
3.00 20 4.64 0.2
SGE R/L -3
GEN 3004
3.00 20 4.64 0.4
GEN 4002
4.00 20 4.50 0.2
SGE R/L -45
GEN 4004
4.00 20 4.50 0.4
GEN 5002
5.00 20 4.50 0.2
GEN 5004
5.00 20 4.50 0.4
GEN 6002
6.00 20 4.50 0.2
SGE R/L -6
GEN 6004
6.00 20 4.50 0.4
SGE
External Grooving
L
1
L
2
b
h
f
w
h
1
r
3.5
Grooving Traverse Cut
Maximum Grooving Depth
Above figures show right hand tools.
SEC-External Grooving Tools
SGE
Type
External
F25
F
Grooving Tools
Grooving
Cut-Off
Threading
Spare Parts
Holders
Cat. No. Stock
Dimensions (mm)
Min.
Bore
(mm)
Grooving Width
(mm)
Max.
Grooving
Depth
(mm)
Applicable
Insert
Screw Spanner
øD
s
hL
1
fL
2
w
SGIT R08
8 7.0 125 5.0 20 10.0
0.50 to 2.00
0.8
GITL3
BFTX02506NS RT08
SGIT R10
10 9.0 150 6.0 25 12.0 0.8
SGIT R12
12 11.0 180 7.0 30 14.0
1.00 to 2.00
1.8
GITL5
BFTX0307NS RT10
SGIT R14
14 13.0 180 8.0 35 16.0 1.8
SGIT R16
16 15.0 200 10.0 40 20.0
1.50 to 2.00
2.8
GITL6
SGIT R20
20 19.0 200 12.0 40 25.0 2.8
*Maximum grooving depth is 0.5mm when GITL3050 is set.
Inserts
a
ød
3.18
+
0.05
0
w
Cat. No.
Coated Carbide
Dimensions (mm)
Applicable Holder
ACZ150
wa ød
GIT L3050
0.50 1.2 0.05 5.56
SGIT R08
SGIT R10
GIT L3065
0.65 1.2 0.05 5.56
GIT L3075
0.75 1.2 0.05 5.56
GIT L3100
1.00 1.2 0.05 5.56
GIT L3125
1.25 1.2 0.20 5.56
GIT L3145
1.45 1.2 0.20 5.56
GIT L3150
1.50 1.2 0.05 5.56
GIT L3200
2.00 1.2 0.10 5.56
GIT L5100
1.00 2.2 0.05 7.94
SGIT R12
SGIT R14
GIT L5145
1.45 2.2 0.20 7.94
GIT L5150
1.50 2.2 0.05 7.94
GIT L5175
1.75 2.2 0.20 7.94
GIT L5200
2.00 2.2 0.10 7.94
GIT L6150
1.50 3.2 0.20 9.525
SGIT R16
SGIT R20
GIT L6175
1.75 3.2 0.20 9.525
GIT L6200
2.00 3.2 0.20 9.525
SEC-Internal Grooving Tools
CKB / SGIT
Type
Internal Grooving
Spare Parts
Holders
Cat. No. Stock
Dimensions (mm)
Clamp
Double
Screw
Spanner
hbL fh
1
CKB R1010-16
10 10 100 10 10
CKBW16 WB4-8 LH020
CKB R1212-16
12 12 125 12 12
CKB R1616-16
16 16 125 16 16
CKB R2020-16
20 20 125 20 20
CKB R2525-16
25 25 150 25 25
Inserts
3.8
6.2
7. 0
F
e
2-
55°
12.7
w
w
e
R0.25
Close-up of Cutting Edge
ø m Min. Bore
Cat. No.
Coated Carbide
Min. Bore
øD
m
Grooving Width
(mm)
Dimensions (mm)
ACZ310
wF e
KBMG R0411-05
4.0 1.00 4.90 1.1 0.05 28.5 11
KBMG R0411-10
4.0 2.00 4.90 1.1 0.10 28.5 11
KBMG R0511-05
5.0 1.00 5.10 1.3 0.05 28.5 11
KBMG R0511-10
5.0 2.00 5.10 1.3 0.10 28.5 11
CKB
Internal Grooving
f
e
h
1
bh
L
20
Please refer to the insert table below for dimensions of
e
and
1.
SGIT
Internal Grooving
Internal
Internal
2°
f
øD
s
h
L
1
L
2
2°
w
øD
m
Min. Bore
F26
F
Grooving Tools
Grooving
Cut-Off
Threading
SEC-Internal Grooving Tools
GNDI
Type
Internal Grooving
Internal Grooving
GNDI
Spare Parts
Holders Above figures show right hand tools.
Cat. No.
Stock Dimensions (mm)
Min. Bore (mm)
Grooving Width (mm)
Max. Grooving
Depth
a
r
(mm)
Applicable Insert
Clamp
Bolt
Recommended
Tightening
Torque
N m
Spanner
øD
s
hL
1
f øD
m
w
GNDI R/L2532-T206
25 23 200 16 32 2.0 6
GCM N20 -
BH0516 5.0 LH030
GNDI R/L3240-T210
32 30 250 26 40 2.0 10
GCM N20 -
BH0616 6.0 LH040
GNDI R/L2532-T306
25 23 200 16 32 3.0 6
GCM N30 -
BH0516 5.0 LH030
GNDI R/L3240-T310
32 30 250 26 40 3.0 10
GCM N30 -
BH0616 6.0 LH040
GNDI R/L4050-T311
40 38 300 31 50 3.0 11
GCM N30 -
GNDI R/L2532-T406
25 23 200 19 32 4.0 6
GCM N40 -
BH0516 5.0 LH030
GNDI R/L3240-T410
32 30 250 26 40 4.0 10
GCM N40 -
BH0616 6.0 LH040
GNDI R/L4050-T411
40 38 300 31 50 4.0 11
GCM N40 -
GNDI R/L2532-T506
25 23 200 19 32 5.0 6
GCM N50 -
BH0516 5.0 LH030
GNDI R/L3240-T510
32 30 250 26 40 5.0 10
GCM N50 -
BH0616 6.0 LH040
GNDI R/L4050-T511
40 38 300 31 50 5.0 11
GCM N50 -
GNDI R/L4050-T611
40 38 300 31 50 6.0 11
GCM N60 -
BH0616 6.0 LH040
Select holders and inserts with the same grooving widths (w).
Internal
L
1
h
f
w
øD
s
øD
m
Min. Bore
Recommended Cutting Conditions
F23
For GNDI
Application
Shape Appearance Cat. No.
Coated Carbide Dimensions (mm)
Pcs./
Pack
Fig.
AC830P AC425K AC520U AC530U
w
s
Cutting width
Tolerance
Grooving / Turning
Fig. 1
W
S
MG
Type
Type
General Purpose Type
GCM N3004-MG
3.0 ±0.03 0.4 21.1 3.8
51
GCM N4008-MG
4.0 ±0.03 0.8 26.4 4.0
GCM N5008-MG
5.0 ±0.03 0.8 26.4 4.1
GCM N6008-MG
6.0 ±0.03 0.8 26.4 4.5
ML
ML
Type
Type
Low Feed Type
Low Feed Type
w
w
=~4.0mm
=~4.0mm
w
w
=5.0mm~
=5.0mm~
GCM N3002-ML
3.0 ±0.03 0.2 21.1 3.8
51
GCM N4004-ML
4.0 ±0.03 0.4 26.4 4.0
GCM N5004-ML
5.0 ±0.03 0.4 26.4 4.1
GCM N6004-ML
6.0 ±0.03 0.4 26.4 4.5
Grooving Cut-Off
Fig. 1
W
S
GG
Type
General Purpose Type
GCM N2002-GG
2.0 ±0.03 0.2 21.1 3.6
51
GCM N3002-GG
3.0 ±0.03 0.2 21.1 3.8
GCM N4002-GG
4.0 ±0.03 0.2 26.4 4.0
GCM N5002-GG
5.0 ±0.03 0.2 26.4 4.1
GCM N6002-GG
6.0 ±0.03 0.2 26.4 4.5
GCM N3004-GG
3.0 ±0.03 0.4 21.1 3.8
51
GCM N4004-GG
4.0 ±0.03 0.4 26.4 4.0
GCM N5004-GG
5.0 ±0.03 0.4 26.4 4.1
GCM N6004-GG
6.0 ±0.03 0.4 26.4 4.5
GL
Type
Low Feed Type
GCM N2002-GL
2.0 ±0.03 0.2 21.1 3.6
51
GCM N3002-GL
3.0 ±0.03 0.2 21.1 3.8
GCM N4002-GL
4.0 ±0.03 0.2 26.4 4.0
GCM N5002-GL
5.0 ±0.03 0.2 26.4 4.1
GCM N6002-GL
6.0 ±0.03 0.2 26.4 4.5
GF
Type
Low cutting force Type
GCM N2002-GF
2.0 ±0.03 0.2 21.1 3.6
51
GCM N3002-GF
3.0 ±0.03 0.2 21.1 3.8
GCM N4002-GF
4.0 ±0.03 0.2 26.4 4.0
GCM N5002-GF
5.0 ±0.03 0.2 26.4 4.1
GCM N6002-GF
6.0 ±0.03 0.2 26.4 4.5
Copying
Fig. 2
W
S
RG
Type
Type
General Purpose Type
GCM N3015-RG
3.0 ±0.03 1.5 21.1 3.8
52
GCM N4020-RG
4.0 ±0.03 2.0 26.4 4.0
GCM N5025-RG
5.0 ±0.03 2.5 27.2 4.1
GCM N6030-RG
6.0 ±0.03 3.0 27.5 4.5
Select holders and inserts with the same grooving widths (w).
mark: Standard stocked item (expanded item)
F27
F
Grooving Tools
Grooving
Cut-Off
Threading
SEC-Face Grooving Tools
CKB
Type
Very Small Diameter Face Grooving
Spare Parts
Holders
Cat. No. Stock
Dimensions (mm)
Clamp
Double
Screw
Spanner
hbL
1
fh
1
CKBR 1010-16
10 10 100 10 10
CKBW16 WB4-8 LH020
CKBR 1212-16
12 12 125 12 12
CKBR 1616-16
16 16 125 16 16
CKBR 2020-16
20 20 125 20 20
CKBR 2525-16
25 25 150 25 25
* For round shank holder, refer to page E12.
Inserts
3.8
4.3
5.3
e
6.2
øDm Min. Bore
w
F
7. 0
55°
12.7
2-
Cat. No.
Coated Carbide
Min. Bore
(mm)
øD
m
Dimensions (mm)
Max. Grooving
Depth (mm)
Few
ACZ150
KBMF R0615-05
6.0 4.0 0.2 1.5
0.05 21.8
4.0
KBMF R0620-05
6.0 4.0 0.2 2.0
0.05 21.8
4.0
KBMF R0630-05
6.0 4.0 0.2 3.0
0.05 21.8
4.0
Face Grooving
h
1
h
b
f
L
1
w
Min. Bore ø6
20
Face
F28
F
Grooving Tools
Grooving
Cut-Off
Threading
SEC-Face Grooving Tools
GNDF
Type
Face Grooving
Face Grooving
GNDF
Spare Parts
Holders
Cat. No.
Stock Dimensions (mm)
Work Dia. (mm)
Grooving Width
(mm)
Max. Grooving
Depth (mm)
a
r
Applicable
Insert
Cap
Screw
Recommended
Tightening
Torque
N m
Spanner
hbL
1
fh
1
L
2
øD
m
w
GNDF R/L2020K-312-035
20 20 125 20 20 35.6 35 to 45 3.0 12
GCM N30 -
BX0520 5.0 LH040
GNDF R/L2020K-312-040
20 20 125 20 20 35.6 40 to 55 3.0 12
GNDF R/L2020K-318-050
20 20 125 20 20 41.6 50 to 70 3.0 18
GNDF R/L2020K-318-065
20 20 125 20 20 41.6 65 to 100 3.0 18
GNDF R/L2020K-318-090
20 20 125 20 20 41.6 90 to 150 3.0 18
GNDF R/L2020K-318-140
20 20 125 20 20 41.6 140 to 200 3.0 18
GNDF R/L2020K-318-180
20 20 125 20 20 41.6 180 to 300 3.0 18
GNDF R/L2020K-418-040
20 20 125 20 20 41.6 40 to 55 4.0 18
GCM N40 -
BX0520 5.0 LH040
GNDF R/L2020K-423-050
20 20 125 20 20 46.6 50 to 70 4.0 23
GNDF R/L2020K-423-065
20 20 125 20 20 46.6 65 to 90 4.0 23
GNDF R/L2020K-423-085
20 20 125 20 20 46.6 85 to 130 4.0 23
GNDF R/L2020K-423-125
20 20 125 20 20 46.6 125 to 200 4.0 23
GNDF R/L2020K-423-180
20 20 125 20 20 46.6 180 to 300 4.0 23
GNDF R/L2020K-423-280
20 20 125 20 20 46.6 280 to 1000 4.0 23
GNDF R/L2020K-523-050
20 20 125 20 20 46.6 50 to 70 5.0 23
GCM N50 -
BX0520 5.0 LH040
GNDF R/L2020K-523-065
20 20 125 20 20 46.6 65 to 90 5.0 23
GNDF R/L2020K-523-085
20 20 125 20 20 46.6 85 to 130 5.0 23
GNDF R/L2020K-523-125
20 20 125 20 20 46.6 125 to 200 5.0 23
GNDF R/L2020K-523-180
20 20 125 20 20 46.6 180 to 300 5.0 23
GNDF R/L2020K-523-280
20 20 125 20 20 46.6 280 to 1000 5.0 23
GNDF R/L2020K-623-050
20 20 125 20 20 46.6 50 to 75 6.0 23
GCM N60 -
BX0520 5.0 LH040
GNDF R/L2020K-623-070
20 20 125 20 20 46.6 70 to 110 6.0 23
GNDF R/L2020K-623-100
20 20 125 20 20 46.6 100 to 200 6.0 23
GNDF R/L2020K-623-180
20 20 125 20 20 46.6 180 to 300 6.0 23
GNDF R/L2020K-623-280
20 20 125 20 20 46.6 280 to 1000 6.0 23
GNDF R/L2525M-312-035
25 25 150 25 25 35.6 35 to 45 3.0 12
GCM N30 -
BX0520 5.0 LH040
GNDF R/L2525M-312-040
25 25 150 25 25 35.6 40 to 55 3.0 12
GNDF R/L2525M-318-050
25 25 150 25 25 41.6 50 to 70 3.0 18
GNDF R/L2525M-318-065
25 25 150 25 25 41.6 65 to 100 3.0 18
GNDF R/L2525M-318-090
25 25 150 25 25 41.6 90 to 150 3.0 18
GNDF R/L2525M-318-140
25 25 150 25 25 41.6 140 to 200 3.0 18
GNDF R/L2525M-318-180
25 25 150 25 25 41.6 180 to 300 3.0 18
GNDF R/L2525M-418-040
25 25 150 25 25 41.6 40 to 55 4.0 18
GCM N40 -
BX0520 5.0 LH040
GNDF R/L2525M-423-050
25 25 150 25 25 46.6 50 to 70 4.0 23
GNDF R/L2525M-423-065
25 25 150 25 25 46.6 65 to 90 4.0 23
GNDF R/L2525M-423-085
25 25 150 25 25 46.6 85 to 130 4.0 23
GNDF R/L2525M-423-125
25 25 150 25 25 46.6 125 to 200 4.0 23
GNDF R/L2525M-423-180
25 25 150 25 25 46.6 180 to 300 4.0 23
GNDF R/L2525M-423-280
25 25 150 25 25 46.6 280 to 1000 4.0 23
GNDF R/L2525M-523-050
25 25 150 25 25 46.6 50 to 70 5.0 23
GCM N50 -
BX0520 5.0 LH040
GNDF R/L2525M-523-065
25 25 150 25 25 46.6 65 to 90 5.0 23
GNDF R/L2525M-523-085
25 25 150 25 25 46.6 85 to 130 5.0 23
GNDF R/L2525M-523-125
25 25 150 25 25 46.6 125 to 200 5.0 23
GNDF R/L2525M-523-180
25 25 150 25 25 46.6 180 to 300 5.0 23
GNDF R/L2525M-523-280
25 25 150 25 25 46.6 280 to 1000 5.0 23
GNDF R/L2525M-623-050
25 25 150 25 25 46.6 50 to 75 6.0 23
GCM N60 -
BX0520 5.0 LH040
GNDF R/L2525M-623-070
25 25 150 25 25 46.6 70 to 110 6.0 23
GNDF R/L2525M-623-100
25 25 150 25 25 46.6 100 to 200 6.0 23
GNDF R/L2525M-623-180
25 25 150 25 25 46.6 180 to 300 6.0 23
GNDF R/L2525M-623-280
25 25 150 25 25 46.6 280 to 1000 6.0 23
Select holders and inserts with the same grooving widths ( ).
Above figures show right hand tools.
Face
a
r
h
1
L
2
L
1
w
f
h
b
øD
m
(Work Dia.)
Max. Dia.
Min. Dia.
* Use the multi-purpose copying
insert for turning (wide grooves).
Work diameters in the stock table indicate
external diameters of face grooves.
F29
F
Grooving Tools
Grooving
Cut-Off
Threading
SEC-Face Grooving Tools
GNDF
Series
For GNDF
Application
Shape Appearance Cat. No.
Coated Carbide Dimensions (mm)
Pcs./
Pack
Fig.
AC830P AC425K AC520U AC530U
w
s
Cutting width
Tolerance
Grooving / Turning
Fig. 1
W
S
MG
Type
General Purpose Type
GCM N3004-MG
3.0 ±0.03 0.4 21.1 3.8
51
GCM N4008-MG
4.0 ±0.03 0.8 26.4 4.0
GCM N5008-MG
5.0 ±0.03 0.8 26.4 4.1
GCM N6008-MG
6.0 ±0.03 0.8 26.4 4.5
ML
ML
Type
Type
Low Feed Type
Low Feed Type
w
w
=~4.0mm
=~4.0mm
w
w
=5.0mm~
=5.0mm~
GCM N3002-ML
3.0 ±0.03 0.2 21.1 3.8
51
GCM N4004-ML
4.0 ±0.03 0.4 26.4 4.0
GCM N5004-ML
5.0 ±0.03 0.4 26.4 4.1
GCM N6004-ML
6.0 ±0.03 0.4 26.4 4.5
Grooving / Cut-Off
Fig. 1
W
S
GG
Type
General Purpose Type
GCM N3002-GG
3.0 ±0.03 0.2 21.1 3.8
51
GCM N4002-GG
4.0 ±0.03 0.2 26.4 4.0
GCM N5002-GG
5.0 ±0.03 0.2 26.4 4.1
GCM N6002-GG
6.0 ±0.03 0.2 26.4 4.5
GCM N3004-GG
3.0 ±0.03 0.4 21.1 3.8
51
GCM N4004-GG
4.0 ±0.03 0.4 26.4 4.0
GCM N5004-GG
5.0 ±0.03 0.4 26.4 4.1
GCM N6004-GG
6.0 ±0.03 0.4 26.4 4.5
GL
Type
Low Feed Type
GCM N3002-GL
3.0 ±0.03 0.2 21.1 3.8
51
GCM N4002-GL
4.0 ±0.03 0.2 26.4 4.0
GCM N5002-GL
5.0 ±0.03 0.2 26.4 4.1
GCM N6002-GL
6.0 ±0.03 0.2 26.4 4.5
GF
Type
Low Cutting Force Type
GCM N3002-GF
3.0 ±0.03 0.2 21.1 3.8
51
GCM N4002-GF
4.0 ±0.03 0.2 26.4 4.0
GCM N5002-GF
5.0 ±0.03 0.2 26.4 4.1
GCM N6002-GF
6.0 ±0.03 0.2 26.4 4.5
Select holders and inserts with the same grooving widths (
w
).
Recommended Cutting Conditions GNDF
Work Material
P
Carbon Steel Alloy Steel
M
Stainless Steel
K
Cast Iron
S
Exotic Alloy
Grade
AC830P AC520U AC530U AC830P AC520U AC530U AC425K AC520U AC530U AC520U AC530U
Cutting Speed v
c
80 to 200 80 to 200 50 to 200 70 to 150 70 to 150 50 to 150 80 to 200 60 to 200 50 to 200 20 to 80 20 to 60
Grooving / Cut-Off
Breaker
Feed Rate f
MG ML GG GL GF RG
Grooving
Widths
w
(mm)
2.0
− − 0.05 to 0.25 0.03 to 0.15 0.03 to 0.12 −
3.0
0.08 to 0.20 0.03 to 0.15 0.10 to 0.30 0.05 to 0.18 0.05 to 0.15 0.05 to 0.15
4.0
0.10 to 0.25 0.05 to 0.20 0.15 to 0.35 0.08 to 0.22 0.05 to 0.18 0.10 to 0.20
5.0
0.12 to 0.30 0.08 to 0.25 0.20 to 0.40 0.10 to 0.25 0.08 to 0.20 0.15 to 0.25
6.0
0.15 to 0.35 0.10 to 0.30 0.20 to 0.45 0.12 to 0.30 0.10 to 0.25 0.20 to 0.30
7.0
0.18 to 0.40 0.12 to 0.35 0.20 to 0.50 0.15 to 0.35 − 0.25 to 0.35
8.0
0.20 to 0.45 0.15 to 0.40 0.20 to 0.55 0.18 to 0.40 − 0.35 to 0.40
Turning
Breaker
MG ML RG
Feed Rate
f
Depth of Cut
a
p
Feed Rate
f
Depth of Cut
a
p
Feed Rate
f
Depth of Cut
a
p
Grooving
Widths
w
(mm)
3.0
0.08 to 0.25 0.4 to 1.5 0.05 to 0.18 0.3 to 1.5 0.10 to 0.40 0.3 to 1.2
4.0
0.10 to 0.30 0.5 to 2.0 0.05 to 0.20 0.4 to 2.0 0.15 to 0.45 0.6 to 1.6
5.0
0.12 to 0.35 0.8 to 2.5 0.08 to 0.25 0.5 to 2.5 0.20 to 0.50 0.8 to 2.0
6.0
0.15 to 0.40 1.0 to 3.0 0.10 to 0.30 0.5 to 3.0 0.30 to 0.60 1.0 to 2.2
7.0
0.18 to 0.45 1.2 to 3.5 0.12 to 0.35 0.7 to 3.5 0.35 to 0.65 1.2 to 2.5
8.0
0.20 to 0.50 1.5 to 4.0 0.15 to 0.40 0.7 to 4.0 0.35 to 0.70 1.5 to 3.0
mark: Standard stocked item (expanded item)
Note: Modifications to inserts and holders are required to perform machining such as R-grooving when using the RG type chipbreaker with the GNDFS type holder for facing.
F30
F
Grooving Tools
Grooving
Cut-Off
Threading
SEC-Face Grooving Tools
GNDFS
Type
Face Grooving
GNDFS
Spare Parts
Holders
Cat. No.
Stock Dimensions (mm)
Work Dia. (mm)
Grooving Width
(mm)
Max. Grooving
Depth (mm)
a
r
Applicable Insert
Cap
Screw
Recommended
Tightening
Torque
N m
Spanner
hbL
1
fh
1
L
2
øD
m
w
GNDFS R/L2525M-620-070
25 25 150 47 25
25
70
to
100
6.0 20
GCM N60 -
BX0520 5.0 LH040
GNDFS R/L2525M-620-100
25 25 150 47 25 25
100
to
200
6.0 20
GNDFS R/L2525M-620-180
25 25 150 47 25 25
180
to
300
6.0 20
GNDFS R/L2525M-620-280
25 25 150 47 25 25
280
to
1000
6.0 20
GNDFS R/L2525M-620-450
25 25 150 47 25 25
From
450
6.0 20
GNDFS R/L3232P-620-070
32 32 170 54 32 25
70
to
100
6.0 20
GCM N60 -
BX0620 6.0 LH050
GNDFS R/L3232P-620-100
32 32 170 54 32 25
100
to
200
6.0 20
GNDFS R/L3232P-620-180
32 32 170 54 32 25
180
to
300
6.0 20
GNDFS R/L3232P-620-280
32 32 170 54 32 25
280
to
1000
6.0 20
GNDFS R/L3232P-620-450
32 32 170 54 32 25
From
450
6.0 20
GNDFS R/L2525M-820-070
25 25 150 47 25 30
70
to
100
8.0 20
GCM N80 -
BX0620 6.0 LH050
GNDFS R/L2525M-820-100
25 25 150 47 25 30
100
to
200
8.0 20
GNDFS R/L2525M-820-180
25 25 150 47 25 30
180
to
300
8.0 20
GNDFS R/L2525M-820-280
25 25 150 47 25 30
280
to
1000
8.0 20
GNDFS R/L2525M-820-450
25 25 150 47 25 30
From
450
8.0 20
GNDFS R/L3232P-820-070
32 32 170 54 32 30
70
to
100
8.0 20
GCM N80 -
BX0620 6.0 LH050
GNDFS R/L3232P-820-100
32 32 170 54 32 30
100
to
200
8.0 20
GNDFS R/L3232P-820-180
32 32 170 54 32 30
180
to
300
8.0 20
GNDFS R/L3232P-820-280
32 32 170 54 32 30
280
to
1000
8.0 20
GNDFS R/L3232P-820-450
32 32 170 54 32 30
From
450
8.0 20
Select holders and inserts with the same grooving widths (w ).
øD
m
(Work Dia.)
w
1
h
f
1
L
b
2
L
h
r
a
Above figures show right hand tools.
* Use the multi-purpose copying insert for
turning (wide grooves).
Face
For GNDFS
Application
Shape Type Cat. No.
Coated Carbide Dimensions (mm)
Pcs./
Pack
Fig.
AC830P AC425K AC520U AC530U
w
s
Cutting width
Tolerance
Grooving / Turning
Fig. 1
W
S
General Purpose Type
GCM N6008-MG
6.0 ±0.03 0.8 26.4 4.5
51
GCM N8008-MG
8.0 ±0.04 0.8 28.75 6.0
Low Feed Type
GCM N6004-ML
6.0 ±0.03 0.4 26.4 4.5
51
GCM N8004-ML
8.0 ±0.04 0.4 28.75 6.0
Grooving Cut-Off
Fig. 1
W
S
General Purpose Type
GCM N6002-GG
6.0 ±0.03 0.2 26.4 4.5
51
GCM N6004-GG
6.0 ±0.03 0.4 26.4 4.5
GCM N8004-GG
8.0 ±0.04 0.4 28.75 6.0
Low Feed Type
GCM N6002-GL
6.0 ±0.03 0.2 26.4 4.5
51
GCM N8004-GL
8.0 ±0.04 0.4 28.75 6.0
Low cutting force Type
GCM N6002-GF
6.0 ±0.03 0.2 26.4 4.5 5 1
Select holders and inserts with the same grooving widths (w ).
Recommended Cutting Conditions
Work Material
P
Carbon Steel / Alloy Steel
M
Stainless Steel
K
Cast Iron
S
Exotic Alloy
Grade
AC830P AC520U AC530U AC830P AC520U AC530U AC425K AC520U AC530U AC520U AC530U
Cutting Speed v
c
(m/min)
80 to 200 80 to 200 50 to 200 70 to 150 70 to 150 50 to 150 80 to 200 60 to 200 50 to 200 20 to 80 20 to 60
Grooving / Cut-Off
Breaker
Feed Rate f mm/rev
MG ML GG GL GF RG
Grooving
Widths
w
(mm)
6.0
0.15 to 0.35 0.10 to 0.30 0.20 to 0.45 0.12 to 0.30 0.10 to 0.25 0.20 to 0.30
8.0
0.20 to 0.45 0.15 to 0.40 0.20 to 0.55 0.18 to 0.40 − 0.35 to 0.40
Turning
Breaker
MG ML RG
Feed Rate f
mm/rev
Depth of Cut a
p
mm
Feed Rate f
mm/rev
Depth of Cut a
p
mm
Feed Rate f
mm/rev
Depth of Cut a
p
mm
Grooving
Widths
w
(mm)
6.0
0.15 to 0.40 1.0 to 3.0 0.10 to 0.30 0.5 to 3.0 0.30 to 0.60 1.0 to 2.2
8.0
0.20 to 0.50 1.5 to 4.0 0.15 to 0.40 0.7 to 4.0 0.35 to 0.70 1.5 to 3.0
Note: Modifications to inserts and holders are required to perform machining such as R-grooving when using the RG type chipbreaker with the GNDFS type holder for facing.
mark: Standard stocked item (expanded item)
F31
F
Grooving Tools
Grooving
Cut-Off
Threading
SUMIBORON Grooving Tools
GWB
Type
Characteristics
Tangentially-mounted insert enhances tool rigidity.
New double clamping holder design improves stability during continuous
and interrupted cutting, and also allows traverse tool movement.
Long tool life in interrupted cutting applications with the new
Coated SUMIBORON BNC30G for grooving. (BN250/BN2000
recommended for continuous cutting applications.)
Suited for grooving various types of hardened steel. Variety of
widths available from 1.5 to 6.0mm.
External Grooving
GWB
b
f
h
1
h
2
w
h
a
r
L
1
3˚
Cat. No.
Stock Dimensions (mm)
Grooving Width
(mm)
Max. Grooving
Depth (mm)
a
r
Applicable
Insert No.
Clamp
Cap
Screw
Recommended
Tightening
Torque
N m
Screw Spring
Spanner
RL hb L
1
fh
1
h
2
w
GWB R/L 2020-45
20 20
151
(150)
25 20 5
1.5≤ ≤4.5
3.5 to 5.0
TF-72
(Right Hand)
TF-73
(Left Hand)
BX0520T
5.0
BFTX0511N
GSP06 TRX20
GWB R/L 2525-45
25 25
151
(150)
30 25 —
GWB R/L 2525-60
25 25 151 30 25 —
4.5 ≤6.0
5.0
Dimensions in parentheses are taken when "w" 3.0 or less. * Right handed toolholders are applicable with right handed inserts.
Holders
Spare Parts
a
r
ød
2-
w±0.025
s
Cat. No.
Stock
Dimensions (mm)
Insert
No.
Applicable Holder
BN2000
BN250
BNC30G
RLRLRL
wa
r
øds
CGA R/L 1504150
1.5 3.5
0.2 15.875 4.76
GWB R/L 2020-45
GWB R/L 2525-45
CGA R/L 1504200
2.0 3.5
CGA R/L 1504250
2.5 4.0
CGA R/L 1504300
3.0 4.0
CGA R/L 1504350
3.5 5.0
CGA R/L 1504400
4.0 5.0
CGA R/L 1504450
4.5 5.0
CGA R/L 1506500
5.0 5.0
0.2 15.875 6.35
GWB R/L 2525-60
CGA R/L 1506550
5.5 5.0
CGA R/L 1506600
6.0 5.0
* It is also possible to manufacture grooving widths other than those listed above (w = 1.5 to 6.0mm)
Inserts
Grade Application Characteristics HV GPa
TRS GPa
BN2000
Continuous
Grooving
General purpose grade with superior wear
resistance
31 to 34 1.0 to 1.1
BNC30G
Interrupted
Grooving
Recommended for interrupted cutting. Features a
tough substrate, and special ceramic coating that
exhibits both peel-off and wear resistance.
33 to 35 1.1 to 1.2
Characteristics of Grades
Cutting Conditions
H
Hardened Steel
Cutting Speed vc (m/min)
80
to
120
Feed Rate f (mm/rev)
0.04
to
0.08
Recommended Cutting Conditions
* In order to avoid thermal cracking of the
SUMIBORON cutting edge during interrupted cutting,
ensure that the work is thoroughly dry before cutting.
Process Work Material Tool No.
Cutting Conditions
Tool Life Comparison
Shaft Grooving:
Continuous
Required Finish for Groove Sides: Ra 0.4μm
Carburised Steel
58 to 62 HRC
CGAR1504200
BN2000
v
c
: 120m/min
f : 0.05mm/rev
Grooving Depth
: 2mm
Dry
GWB Type
BN2000
No. of Workpieces
Competitor's
Chipping
No Chipping
Spline Depth:
Interrupted
Carburised Steel
58 to 62 HRC
CGAR1504200
BNC30G
v
c
: 100m/min
f : 0.05mm/rev
Grooving Depth
: 1.6mm
Dry
No Chipping
Chipping
GWB Type
BNC30G
Competitor's
No. of Workpieces
Application Examples
Hardened Steel Grooves
External
mark : To be replaced by new item (Please confirm stock availability)
F32
F
Grooving Tools
Grooving
Cut-Off
Threading
SUMIBORON Grooving Tools
BNGG
Type
Holders Inserts are sold separately
Fig. 1 Grooving
L
1
25
f
25
25
Fig. 2 Threading
L
1
25
f
Cat. No.
Stock Dimensions (mm)
Fig. Applicable Insert
RL f L
1
Grooving
BNGG R/L2525-200
30.5 4 150
1
BNGNT0200 R/L
BNGG R/L2525-250
30.5 4 150 BNGNT0250 R/L
BNGG R/L2525-300
30.5 5 150 BNGNT0300 R/L
BNGG R/L2525-400
30.5 6 151 BNGNT0400 R/L
BNGG R/L2525-500
30.5 6 151 BNGNT0500 R/L
BNGG R/L2525-600
30.5 7 152 BNGNT0600 R/L
Threading
BNGG R/L2525-TT
28.5 5 150 2
BNTT1020 R/L
BNTT1530 R/L
* Holder can be configured for grooving or threading by changing the support.
Inserts
5.5
17
6°
2-
F
w 0.05
17
6.0
F
60°
1
Fig. 1 Grooving
Fig. 2 Threading
Back Taper 30'
Back Taper 30'
Cat. No.
Stock
Dimensions (mm)
Fig. Applicable Holder
BN250 BNX20 BN350 BNX25
RLRLRLRLw F
Grooving
BNGNT0200 R/L
2.0 4.0 0.2 25 6.0
1
BNGG R/L 2525-200
BNGNT0250 R/L
2.5 4.0 0.2 25 6.0
BNGG R/L 2525-250
BNGNT0300 R/L
3.0 5.0 0.4 25 6.0
BNGG R/L 2525-300
BNGNT0400 R/L
4.0 6.0 0.4 26 6.0
BNGG R/L 2525-400
BNGNT0500 R/L
5.0 6.0 0.4 26 6.0
BNGG R/L 2525-500
BNGNT0600 R/L
6.0 7.0 0.4 27 6.0
BNGG R/L 2525-600
Threading
BNTT1020 R/L
Pitch 1.0 to 2.0
0.14 25 4.0
2
BNGG R/L 2525-TT
BNTT1530 R/L
Pitch 1.5 to 3.0
0.2 25 4.0
Spare Parts
Applicable Holder
Support Clamp
Axial Screw Spring Cap Screw
Spanner
BNGG R/L2525-200
BNGS R/L 200
BNGC R/L FMJ GSP06
BX0615
(Clamp)
BX0414
(Support)
LH050
(Clamp)
LH030
(Support)
1.8 45
BNGG R/L2525-250
BNGS R/L 250
BNGG R/L2525-300
BNGS R/L 300
BNGG R/L2525-400
BNGS R/L 400
BNGG R/L2525-500
BNGS R/L 500
BNGG R/L2525-600
BNGS R/L 600
BNGG R/L2525-TT
BNGS R/L TT
Recommended Cutting Conditions
Grooving
Cutting Conditions
H
Hardened Steel
Cutting Speed vC (m/min)
80 to 120
Feed Rate f (mm/rev)
0.03
to
0.07
Threading
Cutting Conditions
H
Hardened Steel
Cutting Speed vC (m/min)
80 to 120
Feed Rate f (mm)
Largest Pitch 3.0
Improved rigidity for longer tool life
Strong clamping reduces vibration and enhance chipping resistance.
Grooving and threading operations
Grooving and threading can be adopted by changing the support.
SEC-grooving tool + SUMIBORON insert can be used for hardened
steel grooving.
Hardened Steel, Shallow Grooves
Characteristics
External
External Grooving
BNGG
External Threading
BNGG-TT