BTA
Brazed
Deep Hole Drilling
www.tungaloy.com
02
www.tungaloy.com
10
P
M
K
N
S
MBU type drill head
DC
(DCN-DCX
h6
)
DCONMS
OAL
DCN DCX OAL DCONMS H
MBU-0899-1 xx.xx 8 8.32 UMBB071 7.1 34 6 6
MBU-0899-2 xx.xx 8.33 8.65 UMBB071 7.1 34 6 6
MBU-0899-3 xx.xx 8.66 8.99 UMBB071 7.1 34 6 6
MBU-0999-1 xx.xx 9 9.32 UMBB083 8.3 34 7.2 7
MBU-0999-2 xx.xx 9.33 9.65 UMBB083 8.3 34 7.2 7
MBU-0999-3 xx.xx 9.66 9.99 UMBB083 8.3 34 7.2 7
MBU-1099-1 xx.xx 10 10.32 UMBB090 9 34 7.6 8
MBU-1099-2 xx.xx 10.33 10.65 UMBB090 9 34 7.6 8
MBU-1099-3 xx.xx 10.66 10.99 UMBB090 9 34 7.6 8
MBU-1199-1 xx.xx 11 11.32 UMBB100 10 34 8.6 9
MBU-1199-2 xx.xx 11.33 11.65 UMBB100 10 34 8.6 9
MBU-1199-3 xx.xx 11.66 11.99 UMBB100 10 34 8.6 9
MBU-1349-1 xx.xx 12 12.36 UMBB110 11 34 9.1 10
MBU-1349-2 xx.xx 12.37 12.73 UMBB110 11 34 9.1 10
MBU-1349-3 xx.xx 12.74 13.1 UMBB110 11 34 9.1 10
MBU-1349-4 xx.xx 13.11 13.49 UMBB110 11 34 9.1 10
MBU-1449-1 xx.xx 13.5 13.82 UMBB120 12 34 10.8 11
MBU-1449-2 xx.xx 13.83 14.15 UMBB120 12 34 10.8 11
MBU-1449-3 xx.xx 14.16 14.48 UMBB120 12 34 10.8 11
MBU-1449-4 xx.xx 14.49 14.79 UMBB120 12 34 10.8 11
DC OAL DCONMS H
1122
3112
MBU-0999-2 9.40 9.4 UMBB083 8.3 34 7.2 7
MBU-1199-1 11.00 11 UMBB100 10 34 8.6 9
5 10152025303540
1122
3112
3112
3112
3112
Drilling tolerance: IT9
Surface roughness: Ra 2μm
H (Wrench size)
Designation
Designation
Designation Dia. (mm)
Drill tube
Drill tube
Standard cutting conditions 20, Drill tube (STS) 16
Reference pages:
Brazed drill head with external single-start thread for single tube system (STS),
tool diameter ø8 - ø14.79 mm
The interface of the drill tube has a unique shape. Please be sure to use UMBB drill tube.
The interface of the drill tube has a unique shape. Please be sure to use UMBB drill tube.
Steel
Stainless
Cast iron
Non-ferrous
Superalloys
: First choice
: Second choice
Coated
䖃: Line up
Designation Dia. (mm)
ISO classifi cations for grades
Grade ISO area
Standard products
Non-standard products (to be supplied on request)
MBU-0899-1 xx.xx 1122
e.g. Designation for tool diameter ø9 mm: MBU-0899-1 9.00 1122
When ordering
Drill head Diameter (mm) Grade
www.tungaloy.com
20
ISO JIS
Vc8 - 20 12 .6 - 20 20.01 - 31 31.01 - 43 43.01 - 65
(HB)
(m/min)
MBU, U TE BTU, ETU
S10C - S25C, SS 0.1 - 0.25 %C 125 70 - 130 0.05 - 0.13 0.08 - 0.15 0.1 - 0.17 0.13 - 0.2 0.16 - 0.3
S25C - S55C 0.25 - 0.25 %C 190 70 - 130 0.05 - 0.13 0.08 - 0.15 0.1 - 0.17 0.13 - 0.2 0.16 - 0.3
0.25 - 0.25 %C 250 70 - 130 0.05 - 0.13 0.08 - 0.15 0.1 - 0.17 0.13 - 0.2 0.16 - 0.3
SK 0.55 - 0.80 %C 220 70 - 130 0.05 - 0.13 0.08 - 0.15 0.1 - 0.17 0.13 - 0.2 0.16 - 0.3
0.55 - 0.80 %C 300 70 - 130 0.05 - 0.1 0.08 - 0.12 0.1 - 0.15 0.13 - 0.17 0.15 - 0.28
SNC, DCr, SNCN
SCM, SMn
200 70 - 110 0.05 - 0.13 0.08 - 0.15 0.1 - 0.17 0.13 - 0.2 0.16 - 0.3
275 60 - 110 0.05 - 0.1 0.08 - 0.12 0.1 - 0.15 0.13 - 0.17 0.15 - 0.28
300 60 - 110 0.05 - 0.1 0.08 - 0.12 0.1 - 0.15 0.13 - 0.17 0.15 - 0.28
350 60 - 110 0.05 - 0.1 0.08 - 0.12 0.1 - 0.15 0.13 - 0.17 0.15 - 0.28
SNS, SKD, SKT
SKH, SK
200 70 - 130 0.05 - 0.13 0.08 - 0.15 0.1 - 0.17 0.13 - 0.2 0.16 - 0.3
325 70 - 130 0.05 - 0.1 0.08 - 0.12 0.1 - 0.15 0.13 - 0.17 0.15 - 0.28
SUS430 200 40 - 110 0.05 - 0.13 0.08 - 0.15 0.1 - 0.28 0.13 - 0.3 0.16 - 0.35
SUS410, 420J 240 40 - 110 0.05 - 0.13 0.08 - 0.15 0.1 - 0.28 0.13 - 0.3 0.16 - 0.35
SUS304, SUS316L
180 40 - 110 0.05 - 0.12 0.05 - 0.12 0.08 - 0.25 0.1 - 0.28 0.15 - 0.33
FCD400 - FCD450
180 50 - 110 0.05 - 0.13 0.08 - 0.15 0.1 - 0.17 0.13 - 0.2 0.16 - 0.3
FCD500 - FCD700
260 50 - 110 0.05 - 0.13 0.08 - 0.15 0.1 - 0.17 0.13 - 0.2 0.16 - 0.3
FC100 - FC200 160 60 - 110 0.05 - 0.13 0.06 - 0.13 0.08 - 0.18 0.1 - 0.2 0.15 - 0.25
FC250 - FC350 250 60 - 110 0.05 - 0.13 0.06 - 0.13 0.08 - 0.18 0.1 - 0.2 0.15 - 0.25
FCMB, FCMW 130 70 - 110 0.05 - 0.13 0.06 - 0.13 0.08 - 0.18 0.1 - 0.2 0.15 - 0.25
FCMWP, FCMP 230 70 - 110 0.05 - 0.13 0.06 - 0.13 0.08 - 0.18 0.1 - 0.2 0.15 - 0.25
60 65 - 130 0.05 - 0.13 0.08 - 0.15 0.1 - 0.2 0.15 - 0.25 0.16 - 0.3
100 65 - 130 0.05 - 0.13 0.08 - 0.15 0.1 - 0.2 0.15 - 0.25 0.16 - 0.3
≤12% Si 75 65 - 130 0.05 - 0.13 0.08 - 0.15 0.1 - 0.2 0.15 - 0.25 0.16 - 0.3
90 65 - 130 0.05 - 0.13 0.08 - 0.15 0.1 - 0.2 0.15 - 0.25 0.16 - 0.3
>12% Si 130 65 - 130 0.05 - 0.13 0.08 - 0.15 0.1 - 0.2 0.15 - 0.25 0.16 - 0.3
>1% Pb 110 65 - 130 0.05 - 0.13 0.08 - 0.15 0.1 - 0.2 0.15 - 0.25 0.16 - 0.3
90 65 - 130 0.05 - 0.13 0.08 - 0.15 0.1 - 0.2 0.15 - 0.25 0.16 - 0.3
100 65 - 130 0.05 - 0.13 0.08 - 0.15 0.1 - 0.2 0.15 - 0.25 0.16 - 0.3
200 20 - 50 0.05 - 0.12 0.06 - 0.12 0.08 - 0.15 0.12 - 0.18 0.15 - 0.25
280 20 - 50 0.05 - 0.12 0.06 - 0.12 0.08 - 0.15 0.12 - 0.18 0.15 - 0.25
250 20 - 50 0.05 - 0.12 0.06 - 0.12 0.08 - 0.15 0.12 - 0.18 0.15 - 0.25
350 20 - 50 0.05 - 0.12 0.06 - 0.12 0.08 - 0.15 0.12 - 0.18 0.15 - 0.25
320 20 - 50 0.05 - 0.12 0.06 - 0.12 0.08 - 0.15 0.12 - 0.18 0.15 - 0.25
Rm400 30 - 60 0.05 - 0.1 0.05 - 0.1 0.08 - 0.12 0.1 - 0.15 0.12 - 0.2
Rm1050 30 - 60 0.05 - 0.1 0.05 - 0.1 0.08 - 0.12 0.1 - 0.15 0.12 - 0.2
MBU UTE
ETU
(3 edges)
BTU
(3 edges)
BTU
(2 edges)
Carbon steel
Cast steel
High carbon
steel
Carbon tool
steel
Low alloy ste el
Cast steel
(alloying e le-
ment < 5%)
High allo y steel,
Cast steel
Too l ste el
Stainless steel
Ductile cast
iron
Grey cast iron
Malleable cast
iron
Aluminium
alloys
Wrought
Aluminium
alloys
Cast
Copper alloys
Titanium alloys
Heat-resistant
alloys
Non-hardened
Non-hardened
Hardened
Non-hardened
Hardened
Non-hardened
Hardened
Non-hardened
Hardened
Ferritic
Martensitic
Austenitic
Ferritic / Pearlitic
Pearliti c
Low tensile s trength
High tensile st rength
Ferritic
Pearliti c
Non-aged
Soluted, Aged
Non-aged
Soluted, Aged
High silicon content
Free-cutting copper
Brass, R ed bras s
Electrolytic copper
Non-aged
Soluted, Aged
Non-aged
Soluted, Aged
Cast
Workpiece
material Condition
Hardness
Cutting
speed
Feed: f (mm/rev)
Drill dia. (mm)
α
α-β
Fe based alloys
Ni / Co base d
alloys
STANDARD CUTTING CONDITIONS
Cuttin g parame ters show n here are r elating to the basic r ecomm endatio ns for cut ting mate rials g iven.
Cuttin g conditions, mate rial ha rdnes s, and othe r relevan t variab les mus t be taken in to consid eratio ns to determ ine the ac tual cut ting pa rameter s.
How to use this catalog
: Series name
: Feature
: Appearance and dimension drawing
: Item designation
: Dimension table
: Ordering requirements of Non-standard products
: ISO classifications for grades
: Dimension table of Non-standard products
: Reference pages
: Standard cutting conditions
Option 1
Option 2
Standard brazed BTA drill features and size information are listed in Sections , , , and
on each page. Use the guide and information in Sections and for special tools tailored for
specific components and applications.
For brazed BTA drill head details go to Page 06.
Note: The products are arranged in increasing order of diameter.
Tungaloy 03
ød
S
øD
R
rεRE
IC
S
D1
L
DCm7
DCONMSh6
OAL
LCF
140°
BD øD1, øD2, øD3
CICT z
CND -
CNT -
CRKS S
DC øDc
DCONMS øDs
DCONWS øD, ød2
DCSFMS øD
KAPR κ
LCF ℓ
LF Lf
LPR -
LS ℓs
LU ℓ
NOF z
OAL L
PL PL
ZEFP Z e
øDcm7
øDsh6
L
140°
R
ø9.60
40.0
ø12.70
CAD data provided in e-catalog
2D data (DXF format file)
3D data Light type (STP format file): Can be used to check tool
path and interference.
A rotating body model of an
actual cutting edge curve
and a body cross section.
Note:
- Symbols unspecified in ISO13399 standard
and Tungaloy’s original symbols are not included.
- The symbols still under discussion are included.
Please note any change or addition may occur.
Drill
New symbol Description
Old symbol
ISO13399 - Cutting tool data representation and exchange
What is ISO13399?
This Brazed BTA Deep Hole Drilling catalog is created in compliance with ISO 13399.
ISO13399 defines cutting tool data representation and exchange, allowing the accurate exchange
of tooling data among computer aided applications that support and adhere to the standard,
including CAD, CAM, CAE, PDM, PLM and tool management systems.
Shown below are examples of the ISO13399 symbols.
Before ISO13399
Insert
Drill
ISO13399 standardizes not only the format of 2D and 3D CAD data but also the tool dimension symbols (properties) and reference position
information. This allows the tool information to be read and combined into NC programs and CAM software, regardless of any tool maker's
data. In addition to the General Catalog (paper catalog), we are also updating the symbols in e-catalog (electronic catalog on our website)
to the properties conforming to ISO13399. The e-catalog also provides 2D and 3D CAD data in accordance with ISO13399 standard.
Body external diameter
Number of inserts
Oil hole diameter
Oil hole plug size
Mounting screw size
Machining diameter
Mounting part diameter on the machine
Mounting part diameter on the workpiece
Connecting part diameter
Cutting edge angle
Flute length
Standard length (from the drill shoulder)
Parting length (from flange to tip)
Shank length
Machinable depth
Number of flutes
Overall length (from tip)
Distance from drill tip to shoulder
Number of eective cutting edges on periphery
R
e(effective flute length)
LU(effective flute length)
Includes actual cutting edge curve (CUT layer)
and body cross section (NOCUT layer).
3D data Detail type (STP format file): Can be used to create a new tool
layout chart. (Can be combined with any model on a CAD software.)
Brazed BTA tool
Deep Hole Drilling
10
MBU
11
UTE
12
BTU
15
ETU
Page
ø8 mm - ø14.79 mm
ø12.6 mm - ø20 mm
ø12.6 mm - ø65 mm
ø18.4 mm - ø65 mm
www.tungaloy.com
06
MBU UTE BTU ETU
ø8 - ø14.79 ø12.6 - ø20 ø12.6 - ø65 ø18.4 - ø65
-- -
- -
-
IT9 IT9 IT9 IT9
222 2
---
---
---
10 11 12 - 14 15
*1
*2
*1
*2
Drill diameter (mm)
Applications
Brazed drill heads
Drill Head Categories
Brazed Drill Heads
DTS
(Double Tube System)
Steel
Stainless
Cast iron
Non-ferrous
Superalloys
Hard materials
(≥40HRC)
Hole tolerance
Surface finish Ra (μm)
Machine
Deep hole drilling
machines
NC machines
Lathes
Machining centers
M/C
Workpiece material Thread type
External single-start
thread
External 2-start
thread
Page
(Excellent) (Standard)
*1: UTE & BTU Drill head : ø12.6 mm - ø15.59 mm, External 2-start thread
*2: UTE & BTU Drill head : ø15.6 mm - ø65 mm, External 4-start thread
STS (Single Tube System)
External 4-start
thread
Insert
Guide pads Thread
Photo: UTE
Brazed drill head ― Coated area
Coated area
Tungaloy 07
MBU UTE BTU ETU
1122
P10 - P30
K15 - K25
N15 - N25
S15 - S25
H15 - H25
TiAlCr 2.5
1132
P20 - P30
M25 - M35
TiAlCr 2.5
2122
M30 - M40 TiAlCr 2.5
3112
M15 - M25
K10 - K20
N15 - N25
S15 - S25
H15 - H25
TiAlCr 2.5
3132
K15 - K25
N10 - N20
S15 - S25
H15 - H25
TiAlCr 2.5
Note: Being brazed tools, the grade codes represent the grade combination of the brazed carbide tip and guide pad grades.
They do not represent the individual grade of carbide tips or guide pads.
- High wear resistance
- Suitable for steel, cast iron, and difficult-to-cut
material
- Good balance between wear and chipping
resistance
- Suitable for steel and stainless steel under general
cutting conditions
- High fracture resistance
- Suitable for stainless steel
- First choice for heat-resistant alloy under general
cutting conditions
Grade Main
compo-
sition
Applica-
tion Features
Thick-
ness
/ μm
Coating
Brazed drill heads
- Good balance between wear and fracture
resistance
Tool Grades
www.tungaloy.com
08
UMBB ST ST OT IT
ø7.1 - ø12 ø11 - ø13 ø14 - ø56 ø18 - ø55.5 ø12 - ø43
-
MBU ----
UTE ---
BTU ---
ETU ---
ø8 - ø14.79 ø12.6 - ø15.59 ø15.6 - ø65 ø18.4 - ø65 ø18.4 - ø65
16 16 16 18 18
The STS is also referred to as the BTA system in
the deep hole drilling process.
A large volume of coolant is pumped under high
pressure to the cutting area in the workpiece.
Chips are then forced out through the drill tube at
the back and do not touch the workpiece providing
an outstanding surface finish. STS is a stable
method to create holes with high accuracy by using
a dedicated drilling machine and a sealing with the
workpiece.
The DTS is characterized by its two tube
construction and is therefore known as the double
tube system. A sealing system and pressure head,
which is required in the Single Tube System (STS),
is not necessary for the DTS and it is therefore
suitable for conventional general purpose machines
such as lathes or machining centers.
In general, because of less efficient chip evacuation
than the STS, the recommended max drilling depth
is 1000mm. The unique DTC-R tube connector that
is capable of supplying high pressure coolant can,
however, successfully achieve drilling depths of up
to 2000mm.
Single Tube System (STS)
Double Tube System (DTS)
Single Tube System (STS) and Double Tube System (DTS)
Single tube system
Double tube system
Workpiece
material
Workpiece
material
Drill
head
Drill
head
Drill
tube
Guide
bush
Guide
bush
Seal Chip
box
Chip
box
Bar rest
Double tube
connector
Oil
pressure
head
Outer tube
Inner tube
No need for seal
Tube diameter (mm)
Thread type
Applications
Drill tubes
Drill diameter (mm)
Drill heads
Brazed
For solid
drilling
Internal 2-start
thread
Internal 4-start
thread
Page
Drill Tube Categories
Drill Tubes
DTS
(Double Tube System)
Internal single-
start thread
STS (Single Tube System)
Internal 4-start
thread
ø8 mm - ø65 mm
MBU, UTE, BTU, ETU
www.tungaloy.com
10
P
M
K
N
S
H
MBU type drill head
DC
(DCN-DCX
h6
)
DCONMS
OAL
DCN DCX OAL DCONMS H
MBU-0899-1 xx.xx 8 8.32 UMBB071 7.1 34 6 6
MBU-0899-2 xx.xx 8.33 8.65 UMBB071 7.1 34 6 6
MBU-0899-3 xx.xx 8.66 8.99 UMBB071 7.1 34 6 6
MBU-0999-1 xx.xx 9 9.32 UMBB083 8.3 34 7.2 7
MBU-0999-2 xx.xx 9.33 9.65 UMBB083 8.3 34 7.2 7
MBU-0999-3 xx.xx 9.66 9.99 UMBB083 8.3 34 7.2 7
MBU-1099-1 xx.xx 10 10.32 UMBB090 9 34 7.6 8
MBU-1099-2 xx.xx 10.33 10.65 UMBB090 9 34 7.6 8
MBU-1099-3 xx.xx 10.66 10.99 UMBB090 9 34 7.6 8
MBU-1199-1 xx.xx 11 11.32 UMBB100 10 34 8.6 9
MBU-1199-2 xx.xx 11.33 11.65 UMBB100 10 34 8.6 9
MBU-1199-3 xx.xx 11.66 11.99 UMBB100 10 34 8.6 9
MBU-1349-1 xx.xx 12 12.36 UMBB110 11 34 9.1 10
MBU-1349-2 xx.xx 12.37 12.73 UMBB110 11 34 9.1 10
MBU-1349-3 xx.xx 12.74 13.1 UMBB110 11 34 9.1 10
MBU-1349-4 xx.xx 13.11 13.49 UMBB110 11 34 9.1 10
MBU-1449-1 xx.xx 13.5 13.82 UMBB120 12 34 10.8 11
MBU-1449-2 xx.xx 13.83 14.15 UMBB120 12 34 10.8 11
MBU-1449-3 xx.xx 14.16 14.48 UMBB120 12 34 10.8 11
MBU-1449-4 xx.xx 14.49 14.79 UMBB120 12 34 10.8 11
DC OAL DCONMS H
1122
3112
MBU-0999-2 9.40 9.4 UMBB083 8.3 34 7.2 7
MBU-1199-1 11.00 11 UMBB100 10 34 8.6 9
5 10152025303540
1122
3112
3112
3112
3112
3112
Steel
Stainless
Cast iron
Non-ferrous
Superalloys
Hard materials
H (Wrench size)
Cutting edge
Designation
Designation
Designation Dia. (mm)
Drill tube
Drill tube
Standard cutting conditions 20, Drill tube (STS) 16
Reference pages:
Brazed drill head with external single-start thread for single tube system (STS),
tool diameter ø8 - ø14.79 mm, CICT = 1
: First choice
: Second choice
Coated
䖃: Line up
Designation Dia. (mm)
Standard products
Non-standard products (to be supplied on request)
MBU-0899-1 xx.xx 1122
e.g. Designation for tool diameter ø9 mm: MBU-0899-1 9.00 1122
When ordering
Drill head Diameter (mm) Grade
ISO classifi cations for grades
Grade ISO area
Tungaloy 11
P
M
K
N
S
H
UTE type drill head
DC
(DCN-DCX
h6
)
DCONMS
OAL
DCN DCX OAL DCONMS H
UTE-0094-1 xx.xx 12.6 12.92 ST0094 11 40 9.6 10
UTE-0094-2 xx.xx 12.93 12.99 ST0094 11 40 9.6 10
UTE-0094-3 xx.xx 13 13.25 ST0094 11 40 9.6 10
UTE-0094-4 xx.xx 13.26 13.6 ST0094 11 40 9.6 10
UTE-0095-1 xx.xx 13.61 13.93 ST0095 12 40 10.6 11
UTE-0095-2 xx.xx 13.94 13.99 ST0095 12 40 10.6 11
UTE-0095-3 xx.xx 14 14.26 ST0095 12 40 10.6 11
UTE-0095-4 xx.xx 14.27 14.6 ST0095 12 40 10.6 11
UTE-0096-1 xx.xx 14.61 14.93 ST0096 13 40 11.6 12
UTE-0096-2 xx.xx 14.94 15.26 ST0096 13 40 11.6 12
UTE-0096-3 xx.xx 15.27 15.59 ST0096 13 40 11.6 12
UTE-0097-1 xx.xx 15.6 15.96 ST0097 14 40 12.6 13
UTE-0097-2 xx.xx 15.97 16.32 ST0097 14 40 12.6 13
UTE-0097-3 xx.xx 16.33 16.7 ST0097 14 40 12.6 13
UTE-0098-1 xx.xx 16.71 17.03 ST0098 15 40 13.6 14
UTE-0098-2 xx.xx 17.04 17.36 ST0098 15 40 13.6 14
UTE-0098-3 xx.xx 17.37 17.7 ST0098 15 40 13.6 14
UTE-0099-1 xx.xx 17.71 18.09 ST0099 16 40 14.5 15
UTE-0099-2 xx.xx 18.1 18.48 ST0099 16 40 14.5 15
UTE-0099-3 xx.xx 18.49 18.9 ST0099 16 40 14.5 15
UTE-0000-1 xx.xx 18.91 19.26 ST0000 17 40 15.5 16
UTE-0000-2 xx.xx 19.27 19.62 ST0099 17 40 15.5 16
UTE-0000-3 xx.xx 19.63 20 ST0099 17 40 15.5 16
DC OAL DCONMS H
1122
UTE-0094-1 12.90 12.9 ST0094 11 40 9.6 10
5 10152025303540
1122
3112
3112
3112
3132
3132
Steel
Stainless
Cast iron
Non-ferrous
Superalloys
Hard materials
H (Wrench size)
Designation
Designation
Designation Dia. (mm)
Drill tube
Drill tube
Standard cutting conditions 20, Drill tube (STS) 16
Reference pages:
Brazed drill head with external 2-start or 4-start thread for single tube system (STS),
tool diameter ø12.6 - ø20 mm, CICT = 1
: First choice
: Second choice
Coated
䖃: Line up
Designation Dia. (mm)
Standard products
Non-standard products (to be supplied on request)
UTE-0094-1 xx.xx 1122
e.g. Designation for tool diameter ø12.92 mm: UTE-0094-1 12.92 1122
When ordering
Drill head Diameter (mm) Grade
UTE Drill head : ø12.6 mm - ø15.59 mm, External 2-start thread
UTE Drill head : ø15.6 mm - ø20 mm, External 4-start thread
Cutting edge
ISO classifi cations for grades
Grade ISO area
www.tungaloy.com
12
BTU type drill head (Small diameter, 2 edges)
DCONMS
LF
OAL
DC
(DCN-DCX
h6
)
DCN DCX OAL LF DCONMS H
BTU-00941 xx.xx 12.6 13.1 ST0094 11 43 41.9 9.6 10
BTU-00942 xx.xx 13.11 13.6 ST0094 11 43 41.9 9.6 10
BTU-00951 xx.xx 13.61 14.1 ST0095 12 43 41.8 10.6 11
BTU-00952 xx.xx 14.11 14.6 ST0095 12 43 41.8 10.6 11
BTU-00961 xx.xx 14.61 15.1 ST0096 13 43 41.7 11.6 12
BTU-00962 xx.xx 15.11 15.59 ST0096 13 43 41.7 11.6 12
5 10152025303540
1122
2122
1122
1122
1122
1122
H (Wrench size)
Designation Designation Dia. (mm)
Drill tube
Standard cutting conditions 20, Drill tube (STS) 16
Reference pages:
Brazed drill head with external 2-start thread for single tube system (STS),
tool diameter ø12.6 - ø15.59 mm, CICT = 2
Non-standard products (to be supplied on request)
BTU-00941 xx.xx 1122
e.g. Designation for tool diameter ø13.1 mm: BTU-00941 13.10 1122
When ordering
Drill head Diameter (mm) Grade
Cutting edge
ISO classifi cations for grades
Grade ISO area
Tungaloy 13
P
M
K
N
S
H
BTU type drill head (3 edges)
DC
DCONMS
LF
OAL
DC OAL LF DCONMS H
1132
2122
3132
BTU-00971 16.11 16.11 ST0097 14 43 40.3 12.6 -
BTU-00971 16.13 16.13 ST0097 14 43 40.3 12.6 -
BTU-002 19.26 19.26 ST0000 17 47 44 15.5 18
BTU-002 19.27 19.27 ST0000 17 47 44 15.5 18
BTU-002 19.28 19.28 ST0000 17 47 44 15.5 18
BTU-002 19.3 19.3 ST0000 17 47 44 15.5 18
BTU-011 20.21 20.21 ST00 18 52.5 49.4 16 18
BTU-011 20.28 20.28 ST00 18 52.5 49.4 16 18
BTU-021 22.1 22.1 ST01 20 56 52.8 18 20
BTU-022 23.6 23.6 ST01 20 56 52.6 18 21
BTU-032 25.26 25.26 ST02 22 57.5 54 19.5 24
BTU-032 25.28 25.28 ST02 22 57.5 54 19.5 24
BTU-032 25.66 25.66 ST02 22 57.5 54 19.5 24
BTU-032 25.67 25.67 ST02 22 57.5 54 19.5 24
BTU-032 25.68 25.68 ST02 22 57.5 54 19.5 24
BTU-032 26.4 26.4 ST02 22 57.5 54 19.5 24
H (Wrench size)
Designation
Brazed drill head with external 4-start thread for single tube system (STS),
tool diameter ø15.6 - ø65 mm, CICT = 3
: First choice
: Second choice
Coated
䖃: Line up
Drill tube
Designation Dia. (mm)
Standard products
Standard cutting conditions 20, Drill tube (STS) 16
Reference pages:
Cutting edge
Steel
Stainless
Cast iron
Non-ferrous
Superalloys
Hard materials
www.tungaloy.com
14
BTU type drill head (3 edges)
DCN-DCXh6
DCONMS
LF
OAL
DCN DCX OAL LF DCONMS H
BTU-00971 xx.xx 15.6 16.2 ST0097 14 43 40.3 12.6 -
BTU-00972 xx.xx 16.21 16.7 ST0097 14 43 40.3 12.6 14
BTU-00981 xx.xx 16.71 17.2 ST0098 15 43 40.3 13.6 15
BTU-00982 xx.xx 17.21 17.7 ST0098 15 43 40.3 13.6 15
BTU-00991 xx.xx 17.71 18.4 ST0099 16 47 44.2 14.5 15
BTU-00992 xx.xx 18.41 18.9 ST0099 16 47 44.1 14.5 -
BTU-001 xx.xx 18.91 19.2 ST0000 17 47 44.1 15.5 17
BTU-002 xx.xx 19.21 20 ST0000 17 47 44 15.5 18
BTU-011 xx.xx 20.01 20.9 ST00 18 52.5 49.4 16 18
BTU-012 xx.xx 20.91 21.8 ST00 18 52.5 49.4 16 19
BTU-021 xx.xx 21.81 22.9 ST01 20 56 52.8 18 20
BTU-022 xx.xx 22.91 24.1 ST01 20 56 52.6 18 21
BTU-031 xx.xx 24.11 25.2 ST02 22 57.5 54 19.5 23
BTU-032 xx.xx 25.21 26.4 ST02 22 57.5 54 19.5 24
BTU-041 xx.xx 26.41 27.5 ST03 24 57.5 53.8 21 25
BTU-042 xx.xx 27.51 28.7 ST03 24 57.5 53.8 21 26
BTU-051 xx.xx 28.71 29.8 ST04 26 63.5 59.5 23.5 27
BTU-052 xx.xx 29.81 31 ST04 26 63.5 59.3 23.5 28
BTU-061 xx.xx 31.01 32.1 ST05 28 63.5 59.4 25.5 29
BTU-062 xx.xx 32.11 33.3 ST05 28 63.5 59.1 25.5 30
BTU-071 xx.xx 33.31 34.8 ST06 30 63.5 59 28 32
BTU-072 xx.xx 34.81 36.2 ST06 30 63.5 58.9 28 33
BTU-081 xx.xx 36.21 37.3 ST07 33 73.5 68.7 30 34
BTU-082 xx.xx 37.31 38.4 ST07 33 73.5 68.5 30 35
BTU-083 xx.xx 38.41 39.6 ST07 33 73.5 68.3 30 36
BTU-091 xx.xx 39.61 40.6 ST08 36 73.5 68.2 33 37
BTU-092 xx.xx 40.61 41.8 ST08 36 73.5 68 33 38
BTU-093 xx.xx 41.81 43 ST08 36 73.5 67.8 33 39
BTU-101 xx.xx 43.01 44.3 ST09 39 75 69.5 36 41
BTU-102 xx.xx 44.31 45.6 ST09 39 75 69.3 36 42
BTU-103 xx.xx 45.61 47 ST09 39 75 69.1 36 43
BTU-111 xx.xx 47.01 48.5 ST10 43 75 68.8 39 44
BTU-112 xx.xx 48.51 50.1 ST10 43 75 68.7 39 46
BTU-113 xx.xx 50.11 51.7 ST10 43 75 68.5 39 47
BTU-121 xx.xx 51.71 53.2 ST11 47 82 75.2 43 49
BTU-122 xx.xx 53.21 54.7 ST11 47 82 75.2 43 50
BTU-123 xx.xx 54.71 56.2 ST11 47 82 75.2 43 51
BTU-131 xx.xx 56.21 58.4 ST12 51 84 77.4 47 54
BTU-132 xx.xx 58.41 60.6 ST12 51 84 76.9 47 55
BTU-133 xx.xx 60.61 62.8 ST12 51 84 76.8 47 57
BTU-134 xx.xx 62.81 65 ST12 51 84 76.5 47 59
BTU-133L xx.xx 60.61 62.8 ST13 56 84 76.8 51 57
BTU-134L xx.xx 62.81 65 ST13 56 84 76.5 51 59
5 10152025303540
1122
1132
1132
2122
3132
3132
3132
3132
Standard cutting conditions 20, Drill tube (STS) 16
Reference pages:
Brazed drill head with external 4-start thread for single tube system (STS),
tool diameter ø15.6 - ø65 mm, CICT = 3
Non-standard products (to be supplied on request)
BTU-00971 xx.xx 1122
e.g. Designation for tool diameter ø16.2 mm: BTU-00971 16.20 1122
When ordering
Drill head Diameter (mm) Grade
Designation Designation Dia. (mm)
Drill tube
ISO classifi cations for grades
Grade ISO area
H (Wrench size)
Cutting edge
Tungaloy 15
5 10152025303540
1122
1132
1132
2122
3132
3132
3132
3132
ETU type drill head
DC
(
DCN-DCXh6
)
LF
OAL
DCONMS
DCN DCX OAL LF DCONMS H
ETU-001 xx.xx 18.4 19.2 OT00 18 50 47.1 16 17
ETU-002 xx.xx 19.21 20 OT00 18 50 47 16 18
ETU-011 xx.xx 20.01 20.9 OT01 20 56 52.8 18 18
ETU-012 xx.xx 20.91 21.8 OT01 20 56 52.7 18 19
ETU-021 xx.xx 21.81 22.9 OT02 22 56 52.8 19.5 20
ETU-022 xx.xx 22.91 24.1 OT02 22 56 52.6 19.5 21
ETU-031 xx.xx 24.11 25.2 OT03 24 57.5 54 21 23
ETU-032 xx.xx 25.21 26.4 OT03 24 57.5 54 21 24
ETU-041 xx.xx 26.41 27.5 OT04 26 60.5 56.8 23.5 25
ETU-042 xx.xx 27.51 28.7 OT04 26 60.5 56.8 23.5 26
ETU-051 xx.xx 28.71 29.8 OT05 28 63.5 59.5 25.5 27
ETU-052 xx.xx 29.81 31 OT05 28 63.5 59.3 25.5 28
ETU-061 xx.xx 31.01 32.1 OT06 31 63.5 59.4 28 29
ETU-062 xx.xx 32.11 33.3 OT06 31 63.5 59.2 28 30
ETU-071 xx.xx 33.31 34.8 OT07 33 70.5 66 30 32
ETU-072 xx.xx 34.81 36.2 OT07 33 70.5 65.8 30 33
ETU-081 xx.xx 36.21 37.3 OT08 36 73.5 68.7 33 34
ETU-082 xx.xx 37.31 38.4 OT08 36 73.5 68.5 33 35
ETU-083 xx.xx 38.41 39.6 OT08 36 73.5 68.3 33 36
ETU-091 xx.xx 39.61 40.6 OT09 39 73.5 68.2 36 37
ETU-092 xx.xx 40.61 41.8 OT09 39 73.5 68 36 38
ETU-093 xx.xx 41.81 43 OT09 39 73.5 67.9 36 39
ETU-101 xx.xx 43.01 44.3 OT10 43 75 69.5 39 41
ETU-102 xx.xx 44.31 45.6 OT10 43 75 69.3 39 42
ETU-103 xx.xx 45.61 47 OT10 43 75 69.1 39 43
ETU-111 xx.xx 47.01 48.5 OT11 47 79 72.9 43 44
ETU-112 xx.xx 48.51 50.1 OT11 47 79 72.8 43 46
ETU-113 xx.xx 50.11 51.7 OT11 47 79 72.5 43 47
ETU-121 xx.xx 51.71 53.2 OT12 51 82 75.3 47 49
ETU-122 xx.xx 53.21 54.7 OT12 51 82 75.5 47 50
ETU-123 xx.xx 54.71 56.2 OT12 51 82 75.3 47 51
ETU-131 xx.xx 56.21 58.4 OT13 56 84 77.4 51 54
ETU-132 xx.xx 58.41 60.6 OT13 56 84 76.9 51 55
ETU-133 xx.xx 60.61 62.8 OT13 56 84 77 51 57
ETU-134 xx.xx 62.81 65 OT13 56 84 76.6 51 59
Grade ISO area
H (Wrench size)
Designation Designation Dia. (mm)
Drill tube
Standard cutting conditions 20, Drill tube (DTS) 18
Reference pages:
Brazed drill head with external 4-start thread for double tube system (DTS),
tool diameter ø18.4 - ø65 mm, CICT = 3
Non-standard products (to be supplied on request)
ETU-001 xx.xx 1122
e.g. Designation for tool diameter ø19.2 mm: ETU-001 19.20 1122
When ordering
Drill head Diameter (mm) Grade
ISO classifi cations for grades
Cutting edge
www.tungaloy.com
16
TUBES
TUBES
OAL
CBDP
DCONWS
H7
BDh8
DCN-DCX OAL BD
DCONWS
CBDP
1600 2600
ST03 26.41 - 28.7 䖃䖣
24 21 30
ST04 28.71 - 31 䖃䖣
26 23.5 33
ST05 31.01 - 33.3 䖃䖣
28 25.5 33
ST06 33.31 - 36.2 䖃䖣
30 28 33
ST07 36.21 - 39.6 䖃䖣
33 30 40
ST08 39.61 - 43 䖃䖣
36 33 40
ST09 43.01 - 47 䖃䖣
39 36 40
ST10 47.01 - 51.7 䖃䖣
43 39 40
ST11 51.71 - 56.2 䖃䖣
47 43 44
ST12 56.21 - 60.6 䖃䖣
51 47 44
ST13 60.61 - 65 䖣56 51 44
OAL
CBDP
DCONWS
H7
BDh8
DCN-DCX OAL BD
DCONWS
CBDP
1600 2600
ST0094 12.6 - 13.6 䖃䖣
11 9.6 22
ST0095 13.61 - 14.6 䖃䖣
12 10.6 22
ST0096 14.61 - 15.59 䖃䖣
13 11.6 22
ST0097 15.6 - 16.7 䖃䖣
14 12.6 21
ST0098 16.71 - 17.7 䖃䖃䖣
15 13.6 21
ST0099 17.71 - 18.9 䖃䖃䖣
16 14.5 22
ST0000 18.91 - 20 䖃䖃䖣
17 15.5 22
ST00 20.01 - 21.8 䖃䖃䖣
18 16 27.5
ST01 21.81 - 24.1 䖃䖣
20 18 30
ST02 24.11 - 26.4 䖃䖣
22 19.5 30
DCN-DCX OAL BD DCONWS CBDP
UMBB071 8 - 8.99 䖣7.1 6 13.5
UMBB083 9 - 9.99 䖣8.3 7.2 13.5
UMBB090 10 - 10.99 䖣9 7.6 13.5
UMBB100 11 - 11.99 䖣10 8.6 13.5
UMBB110 12 - 13.49 䖣11 9.1 13.5
UMBB120 13.5 - 14.79 䖣12 10.8 13.5
Please specify the length (L) when ordering.
e.g. For ø60 mm drill diameter / 2600 mm drill tube length: ST12X2600
The lengths that are not in the above will be available upon request.
䖃 : Line up
䖣 : Item to be customized
ST - for single tube system
Drill tube for single tube system (STS), internal thread type, 2-start thread (tool dia. ≤ ø15.59 mm) or
4-start thread (tool dia. ≥ ø15.6 mm)
Designation Special
length
Designation Special
length
ST : Drill head 11 (UTE), 14 (BTU)
UMBB : Drill head 10 (MBU)
Reference pages:
Please specify the length (L) when ordering.
e.g. For ø11 mm drill diameter / 1000 mm drill tube length: UMBB100X1000
䖣 : Item to be customized
Designation
UMBB - for single tube system with MBU
Drill tube with internal single-start thread for MBU drill head
Special length
Tungaloy 17
L5
L1 L2' L3 L2'' L4
OAL
DCN-DCX L5
8 - 8.32 18
8.33 - 8.65 18
8.66 - 8.99 18
9 - 9.32 18
9.33 - 9.65 18
9.66 - 9.99 18
10 - 10.32 18
10.33 - 10.65 18
10.66 - 10.99 18
11 - 11.32 18
11.33 - 11.65 18
11.66 - 11.99 18
12 - 12.36 18
12.37 - 12.73 18
12.74 - 13.1 18
13.11 - 13.49 18
13.5 - 13.82 18
13.83 - 14.15 18
14.16 - 14.48 18
14.49 - 14.79 18
MBU
DCN-DCX L5
12.6 - 12.92 19
12.93 - 12.99 19
13 - 13.25 19
13.26 - 13.6 19
13.61 - 13.93 19
13.94 - 13.99 19
14 - 14.26 19
14.27 - 14.6 19
14.61 - 14.93 19
14.94 - 15.26 19
15.27 - 15.59 19
15.6 - 15.96 20
15.97 - 16.32 20
16.33 - 16.7 20
16.71 - 17.03 20
17.04 - 17.36 20
17.37 - 17.7 20
17.71 - 18.09 19
18.1 - 18.48 19
18.49 - 18.9 19
18.91 - 19.26 19
19.27 - 19.62 19
19.63 - 20 19
UTE
DCN-DCX L5
12.6 - 17.7 20
17.71 - 19.2 23
19.21 - 21.8 22
21.81 - 24.1 23
24.11 - 28.7 24
28.71 - 33.3 27
33.31 - 36.2 26
36.21 - 40.6 29
40.61 - 43 28
43.01 - 47 30
47.01 - 51.7 29
51.71 - 56.2 32
56.21 - 58.4 34
58.41 - 65 33
BTU
Tube length for special drills
Drill tubes with non-standard lengths will be available upon request.
Please use the guide below to calculate the drill tube length.
Drill tube length OAL = L1 + L2 + L3 + L4 - L5
Bar clamp
Bar rest
Drill tube
Oil pressure head
Drill head
Workpiece
=
=
=
=
=
=
Drill tube overall length
Oil pressure head length
Drilling depth (L2' + L2")
Bar rest length
Drill tube clamp length
Length from drill tube tip
and peripheral edge tip
OAL
L1
L2
L3
L4
L5
www.tungaloy.com
18
OAL
CBDP
DCONWSH7
BDh8
OAL
BD
BD2
OT00 - OT13 IT00 - IT13
DCN-DCX OAL BD
DCONWS
CBDP
OT00 18.4 - 20 䖣18 16 27.5
OT01 20.01 - 21.8 䖣19.5 18 30
OT02 21.81 - 24.1 䖣21.5 19.5 30
OT03 24.11 - 26.4 䖣23.5 21 30
OT04 26.41 - 28.7 䖣26 23.5 33
OT05 28.71 - 31 䖣28 25.5 33
OT06 31.01 - 33.3 䖣30.5 28 33
OT07 33.31 - 36.2 䖣33 30 40
OT08 36.21 - 39.6 䖣35.5 33 40
OT09 39.61 - 43 䖣39 36 40
OT10 43.01 - 47 䖣42.5 39 40
OT11 47.01 - 51.7 䖣46.5 43 44
OT12 51.71 - 56.2 䖣51 47 44
OT13 56.21 - 65 䖣55.5 51 44
DCN-DCX OAL BD BD2
IT00 18.4 - 20 䖣12 10
IT01 20.01 - 21.8 䖣14 12
IT02 21.81 - 24.1 䖣15 13
IT03 24.11 - 26.4 䖣16 14
IT04 26.41 - 28.7 䖣18 16
IT05 28.71 - 31 䖣20 18
IT06 31.01 - 33.3 䖣22 20
IT07 33.31 - 36.2 䖣24 22
IT08 36.21 - 39.6 䖣26 24
IT09 39.61 - 43 䖣29 27
IT10 43.01 - 47 䖣32 30
IT11 47.01 - 51.7 䖣35 32
IT12 51.71 - 56.2 䖣39 36
IT13 56.21 - 65 䖣43 40
L1 L4
L5
L6
L2' L2''
L3
DCN-DCX L5
18.4 - 20 20
20.01 - 24.1 23
24.11 - 28.7 24
28.71 - 33.3 27
33.31 - 36.2 26
36.21 - 40.6 29
40.61 - 43 28
43.01 - 47 30
47.01 - 51.7 29
51.71 - 56.2 32
56.21 - 58.4 34
58.41 - 65 33
ETU
Please specify the length when ordering.
e.g. For ø60 mm drill diameter / 1070 mm drill outer tube length: OT13X1070
Please choose the inner tube length according to the guide below:
tool diameter: ø18.40 - ø65.00 mm (OT00 - OT13) ............ Inner tube length = Outer tube length + 30 mm
tool diameter: ø65.00 - ø123.99 mm (OT14 - OT20) .......... Inner tube length = Outer tube length + 190 mm
tool diameter: ø124.00 - ø183.99 mm (OT21 - OT25) ........ Inner tube length = Outer tube length + 220 mm
OT & IT - for double tube system
Outer tube and inner tube for double tube system (DTS)
Designation Designation
Special length Special length
Outer tube (OT) Inner tube (IT)
䖣 : Item to be customized
Drill head 15 (ETU)
Reference pages:
Tube length for special drills
Please use the guide below to calculate the drill tube length.
Workpiece
Drill head Bar rest
Guide bush
Outer tube
Inner tube
Double tube connector
Outer tube overall length
Lo = L1 + L2 + L3 + L4 - L5
To facilitate a smooth drill entry into the workpiece, make sure that the drill is inside the guiding bush
or pilot hole all the way up to 5 mm over the outer tube before starting the drilling.
DTC L4* L6**
DTC 4R (OT00 - OT13) 120 30
(mm)
Inner tube overall length
Li = Lo + L6
Lo
Li
L1
L2
L3
L4
L5
L6
=
=
=
=
=
=
=
=
Outer tube overall length
Inner tube overall length
Guide bush length (or Pilot hole depth)
Drilling depth (L2' + L2")
Bar rest length
Length of outer tube in connector*
Length from drill tube tip and peripheral
edge tip
Dierence between outer tube length and
inner tube length**
Lo (OAL Outer)
Li (OAL Inner)
Tungaloy 19
ød1
ød2
ADPT- /
SS
TS
FS
F
M
F
M
SS
TS
FS
ADPT-F47FS / F47SS
UB47ST11
ød1 ød2
Conversion adapter
Drill head
ød1 : Outer diameter of the tube that is applicable for the drill head
ød2 : Outer diameter of the tube that is connected with the adapter
Drill tube
Adapter Drill tube
Internal thread Internal thread
Single-start
thread
4-start
thread
2-start
thread
Single-start
thread
4-start
thread
2-start
thread
External thread External thread
For the conversion from ST11 to UB47
Designation example
Adapter for external thread - internal thread conversion
An adapter to connect with a smaller tube diameter is also available upon request.
www.tungaloy.com
20
ISO JIS
Vc8 - 20 12.6 - 20 20.01 - 31 31.01 - 43 43.01 - 65
(HB)
(m/min)
MBU, UTE BTU, ETU
S10C - S25C, SS 0.1 - 0.25 %C 125 70 - 130 0.05 - 0.13 0.08 - 0.15 0.1 - 0.17 0.13 - 0.2 0.16 - 0.3
S25C - S55C 0.25 - 0.25 %C 190 70 - 130 0.05 - 0.13 0.08 - 0.15 0.1 - 0.17 0.13 - 0.2 0.16 - 0.3
0.25 - 0.25 %C 250 70 - 130 0.05 - 0.13 0.08 - 0.15 0.1 - 0.17 0.13 - 0.2 0.16 - 0.3
SK 0.55 - 0.80 %C 220 70 - 130 0.05 - 0.13 0.08 - 0.15 0.1 - 0.17 0.13 - 0.2 0.16 - 0.3
0.55 - 0.80 %C 300 70 - 130 0.05 - 0.1 0.08 - 0.12 0.1 - 0.15 0.13 - 0.17 0.15 - 0.28
SNC, DCr, SNCN
SCM, SMn
200 70 - 110 0.05 - 0.13 0.08 - 0.15 0.1 - 0.17 0.13 - 0.2 0.16 - 0.3
275 60 - 110 0.05 - 0.1 0.08 - 0.12 0.1 - 0.15 0.13 - 0.17 0.15 - 0.28
300 60 - 110 0.05 - 0.1 0.08 - 0.12 0.1 - 0.15 0.13 - 0.17 0.15 - 0.28
350 60 - 110 0.05 - 0.1 0.08 - 0.12 0.1 - 0.15 0.13 - 0.17 0.15 - 0.28
SNS, SKD, SKT
SKH, SK
200 70 - 130 0.05 - 0.13 0.08 - 0.15 0.1 - 0.17 0.13 - 0.2 0.16 - 0.3
325 70 - 130 0.05 - 0.1 0.08 - 0.12 0.1 - 0.15 0.13 - 0.17 0.15 - 0.28
SUS430 200 40 - 110 0.05 - 0.13 0.08 - 0.15 0.1 - 0.28 0.13 - 0.3 0.16 - 0.35
SUS410, 420J 240 40 - 110 0.05 - 0.13 0.08 - 0.15 0.1 - 0.28 0.13 - 0.3 0.16 - 0.35
SUS304, SUS316L
180 40 - 110 0.05 - 0.12 0.05 - 0.12 0.08 - 0.25 0.1 - 0.28 0.15 - 0.33
FCD400 - FCD450
180 50 - 110 0.05 - 0.13 0.08 - 0.15 0.1 - 0.17 0.13 - 0.2 0.16 - 0.3
FCD500 - FCD700
260 50 - 110 0.05 - 0.13 0.08 - 0.15 0.1 - 0.17 0.13 - 0.2 0.16 - 0.3
FC100 - FC200 160 60 - 110 0.05 - 0.13 0.06 - 0.13 0.08 - 0.18 0.1 - 0.2 0.15 - 0.25
FC250 - FC350 250 60 - 110 0.05 - 0.13 0.06 - 0.13 0.08 - 0.18 0.1 - 0.2 0.15 - 0.25
FCMB, FCMW 130 70 - 110 0.05 - 0.13 0.06 - 0.13 0.08 - 0.18 0.1 - 0.2 0.15 - 0.25
FCMWP, FCMP 230 70 - 110 0.05 - 0.13 0.06 - 0.13 0.08 - 0.18 0.1 - 0.2 0.15 - 0.25
60 65 - 130 0.05 - 0.13 0.08 - 0.15 0.1 - 0.2 0.15 - 0.25 0.16 - 0.3
100 65 - 130 0.05 - 0.13 0.08 - 0.15 0.1 - 0.2 0.15 - 0.25 0.16 - 0.3
≤12% Si 75 65 - 130 0.05 - 0.13 0.08 - 0.15 0.1 - 0.2 0.15 - 0.25 0.16 - 0.3
90 65 - 130 0.05 - 0.13 0.08 - 0.15 0.1 - 0.2 0.15 - 0.25 0.16 - 0.3
>12% Si 130 65 - 130 0.05 - 0.13 0.08 - 0.15 0.1 - 0.2 0.15 - 0.25 0.16 - 0.3
>1% Pb 110 65 - 130 0.05 - 0.13 0.08 - 0.15 0.1 - 0.2 0.15 - 0.25 0.16 - 0.3
90 65 - 130 0.05 - 0.13 0.08 - 0.15 0.1 - 0.2 0.15 - 0.25 0.16 - 0.3
100 65 - 130 0.05 - 0.13 0.08 - 0.15 0.1 - 0.2 0.15 - 0.25 0.16 - 0.3
200 20 - 50 0.05 - 0.12 0.06 - 0.12 0.08 - 0.15 0.12 - 0.18 0.15 - 0.25
280 20 - 50 0.05 - 0.12 0.06 - 0.12 0.08 - 0.15 0.12 - 0.18 0.15 - 0.25
250 20 - 50 0.05 - 0.12 0.06 - 0.12 0.08 - 0.15 0.12 - 0.18 0.15 - 0.25
350 20 - 50 0.05 - 0.12 0.06 - 0.12 0.08 - 0.15 0.12 - 0.18 0.15 - 0.25
320 20 - 50 0.05 - 0.12 0.06 - 0.12 0.08 - 0.15 0.12 - 0.18 0.15 - 0.25
Rm400 30 - 60 0.05 - 0.1 0.05 - 0.1 0.08 - 0.12 0.1 - 0.15 0.12 - 0.2
Rm1050 30 - 60 0.05 - 0.1 0.05 - 0.1 0.08 - 0.12 0.1 - 0.15 0.12 - 0.2
20 - 50 0.05 - 0.1 0.06 - 0.1 0.08 - 0.12 0.1 - 0.15 0.1 - 0.2
MBU UTE
ETU
(3 edges)
BTU
(3 edges)
BTU
(2 edges)
Carbon steel
Cast steel
High carbon
steel
Carbon tool
steel
Low alloy steel
Cast steel
(alloying ele-
ment < 5%)
High alloy steel,
Cast steel
Tool ste el
Stainless steel
Ductile cast
iron
Grey cast iron
Malleable cast
iron
Aluminium
alloys
Wrought
Aluminium
alloys
Cast
Copper alloys
Titanium alloys
Hardened
steel ≥ 40 HRC
Heat-resistant
alloys
Non-hardened
Non-hardened
Hardened
Non-hardened
Hardened
Non-hardened
Hardened
Non-hardened
Hardened
Ferritic
Martensitic
Austenitic
Ferritic / Pearlitic
Pearlitic
Low tensile strength
High tensile strength
Ferritic
Pearlitic
Non-aged
Soluted, Aged
Non-aged
Soluted, Aged
High silicon content
Free-cutting copper
Brass, Red brass
Electrolytic copper
Non-aged
Soluted, Aged
Non-aged
Soluted, Aged
Cast
Workpiece
material Condition
Hardness
Cutting
speed
Feed: f (mm/rev)
Drill dia. (mm)
α
α-β
Fe based alloys
Ni / Co based
alloys
STANDARD CUTTING CONDITIONS
Cutting parameters shown here are relating to the basic recommendations for cutting materials given.
Cutting conditions, material hardness, and other relevant variables must be taken into considerations to determine the actual cutting parameters.
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16 17 18 19 20 21 22 23 24 25 26 27 28
0.1
0.08
0.06
0.04
0.02
0
16 17 18 19 20 21 22 23 24 25 26 27 28
8
7
6
5
4
3
2
1
0
16 17 18 19 20 21 22 23 24 25 26 27 28
8
7
6
5
4
3
2
1
0
16 17 18 19 20 21 22 23 24 25 26 27 28
10
9
8
7
6
5
4
3
2
1
0
16 17 18 19 20 21 22 23 24 25 26 27 28
200
180
160
140
120
100
80
60
40
20
0
Pc (kW)
Ff (kN)
T (kNm)
P (MPa)
q (l/min)
18 19 20 21 22 23 24 25 26 27 28
0.1
0.08
0.06
0.04
0.02
0
18 19 20 21 22 23 24 25 26 27 28
10
9
8
7
6
5
4
3
2
1
0
18 19 20 21 22 23 24 25 26 27 28
10
8
6
4
2
0
18 19 20 21 22 23 24 25 26 27 28
3
2.5
2
1.5
1
0.5
18 19 20 21 22 23 24 25 26 27 28
120
100
80
60
40
0
Pc (kW)
Ff (kN)
T (kNm)
P (MPa)
q (l/min)
Vc = 75 m/min
f = 0.25 mm/rev
Vc = 100 m/min
f = 0.25 mm/rev
1MPa = 1.0 N/mm2
1Mpa ≈ 10 a tm
1MPa = 1.0 N/mm2
1Mpa ≈ 10 a tm
f = 0.25 mm/rev
f = 0.25 mm/rev
f = 0.25 mm/rev
f = 0.25 mm/rev
f = 0.15 mm/rev
f = 0.15 mm/rev
f = 0.15 mm/rev
f = 0.15 mm/rev
Vc = 75 m/min
f = 0.15 mm/rev
Vc = 70 m/min
f = 0.25 mm/rev
Net power
Coolant pressure
TorqueFeed force
Coolant volume
Net power
Coolant pressure
Torque
Feed force
Coolant volume
Drill dia. (mm)
Drill dia. (mm)
Drill dia. (mm)
Drill dia. (mm)
Drill dia. (mm)
Drill dia. (mm)
Drill dia. (mm)
Drill dia. (mm)
Drill dia. (mm)
Drill dia. (mm)
Machine setting for single tube system
Machine setting for double tube system
The above values should not be used as the exact recommendations. They may need modification depending on the machining conditions, materials, etc.
Technical guide
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22
øD
øD (mm)
16.00 - 18.00 +0.006 - +0.017
18.01 - 28.00 +0.007 - +0.020
- Only used when the workpiece and the tool axis are
on the same line.
- Better hole straightness and wear resistance on
guide bush are provided compared to the tool-
rotating system.
- Keep the alignment between guide bush and spindle
within 0.02 mm.
- Can be used when the workpiece and the tool axis
are not on the same line.
- Keep the alignment between guide bush and spindle
within 0.02 mm.
Rotating
workpiece Guide bush
Non-rotating
tool Rotating tool
Guide bush
Non-rotating
workpiece
Tool rotating systemWorkpiece rotating system
Positioning of outer tube and guide bush
Tolerance
Temperature Filtration
Water-soluble type
Material
Up to
0.02 mm
Up to
0.02 mm
STS and DTS
DTS
Guide bush
Coolant
Machine setup
Workpiece
Outer tube
Guide bush
Be sure to set the outer tube more than 5.0 mm into the guide bush to
properly supply the coolant.
Guide bush tolerance should be
G6 in order to keep consistent
tool life and cutting accuracy.
Diameters for G6 tolerance are
shown on the right.
The proper coolant temperature is 30 - 40 °C
(90 - 100 °F).
If the temperature exceeds this range, the coolant
will deteriorate easily and may shorten tool life and
generate poor surface finish.
The coolant must be filtered properly in order to
protect guide pads and workpiece surface.
Around 10% (dilution rate 1/10) is recommended for
the concentration of water-soluble coolant in order to
protect guide pads.
Sealing is not required for DTS because of the vacuum effect, but keep
the gap between workpiece material and guide bush within 1.0 mm.
Positioning of workpiece material and guide bush
Up to 1.0 mm
At least
5.0 mm
Guide bush material
Hardened steel
Carbide
System
Workpiece rotating
Tool rotating
Workpiece rotating
Advantage
Economical
Long life of guide bush
Guide bush
(Hardened steel or carbide)
G6 tolerance (mm)
Tungaloy 23
PMM
P
Coolant
Coolant unit
Coolant
Pressure
gauge Flow
gauge
Dirty tank Clean tank
Chipbreaker
Chiller
Filter
Pump
Motor
Flow chart of coolant in deep hole drilling
Single tube system Double tube system
Successful deep hole drilling is achieved by an optimal combination of the tool, the machine, and
the coolant. Coolant plays an essential role in achieving secure and cost-efficient deep hole drilling
operations. Therefore, it is very important to choose the correct type of coolant and use it appropriately.
Coolant plays an essential role in lubricating tools,
cooling cutting edges, chips, and guide pads, as well as
evacuating chips when drilling. It also improves tool life,
surface finish, and cutting accuracy when continuously
supplied during the machining process.
1) Lubrication
Lubrication of cutting edges and guide pads is necessary in
deep hole drilling. For efficient lubrication, it is recommended
to use EP (Extreme Pressure) additives which contain sulfur or
chlorine.
2) Temperature reduction
The ability to cool down the cutting edge and chips depends
A coolant unit is also important to obtain the best effect
from the coolant.
1) Coolant pressure and volume should be fixed and
continuous.
An ideal coolant unit is the one which can set any valve of
coolant pressure and volume and monitor the condition with
gauges. A system that can detect trapped chips by a pressure
gauge, and the screw pumps with an inverter controller are
both recommended.
2) Coolant temperature should be maintained.
Coolant is heated by factors, such as:
- Cutting edge
- Friction on guide pad
- Contact time of heated chips and coolant
- Pump
on such characteristics as thermal conductivity and relative
heat. Coolant with good cooling ability increases tool life, but
water-soluble coolant is not preferred in deep hole drilling
because it reduces effectiveness. If water-soluble coolant is
used, the recommended concentration is 10% (dilution rate
1/10) or more.
3) Chip evacuation
Coolant helps push chips through the back end of the
boring bar (for STS) or inner tube (for DTS) until the chips are
separated from the workpiece in general cutting conditions.
The flow and the pressure of coolant are also important in
order to control chip evacuation.
Maintaining coolant temperature is important to keeping stable
cutting conditions, chip formation, and cutting accuracy.
The temperature should be lower than 40 °C (100 °F) for
EP additives to provide sufficient lubrication. Therefore, the
coolant temperature should be kept between 30 - 40 °C (90 -
100 °F) throughout the cutting operation.
3) Filtering
Unwanted particles are contained in coolant after the cutting
operations, thus filtration is necessary to remove them. The
filter size should be selected carefully to catch particles but not
EP additives. Filter size depends on the coolant, but around 10
- 20 μm is generally suggested. For iron-based workpieces, a
magnetic separator is helpful as it decreases the frequency of
filter maintenance.
Workpiece
material
Workpiece
Workpiece
material
Drill
head
Drill
head
Drill
head
Drill
tube
Drill
tube
Guide
bush Guide
bush
Seal Chip
box
Chip
box
Chip
box
Bar
rest
Double tube
connector
Oil
pressure
head
Oil
pressure
head
Outer
tube Inner
tube
No need for seal
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24
b
a
a
c
3 - 5 mm
4-1
5-1
5-2
5-2
4-2
4-3
4-2
b
c
5-3
Use the CNC drilling cycle as instructed below in order to optimize the tool performance safely.
1. Start the CNC cycle operation
2.
Move the oil pressure head and securely
seal onto the face of the workpiece.
3. Move the BTA drill toward
the workpiece
4. Start the cutting
5. Stop the cutting
6. Return the drill to the starting point
7. Return the oil pressure head
to the starting point
Make sure to position the drill so that the
guide pads remain inside the guide bushing
when the pressure head is moved towards
the workpiece face.
Stop the cutting when the drill shoulder
is completely through the end face of the
workpiece.
Keep the drill 3 - 5 mm* off the face of the
workpiece.
* If the machine allows this drill setting in Step 1, move
on to Step 4.
4-1 Activate the coolant supply.
4-2 Start the rotation (of the drill, the workpiece,
or the drill+workpiece).
4-3 Start the drill feed.
5-1 Stop the drill feed.
5-2 Stop the rotation.
5-3 Stop the coolant supply.
CNC drilling cycle operations
Tungaloy 25
Examples of trouble with cutting edge
Troubleshooting for tip wear
4. Crater wear
5. Initial chipping
3. Flank wear
1. Chipping, fracture
2. Flaking
Problem Cause Grade Cutting conditions / other
Solution
Chipping, fracture
Flaking
Flank wear
Crater wear
Initial chipping
- Excessive vibration or impact
- Torn away built-up edge
- Excessive vibration or impact
- Cutting speed too high
- Inadequate tool toughness
- Cutting speed too high
- Feed rate too high
- Inadequate tool toughness
- Inappropriate guide bush or
pilot hole
- Misalignment
- Use a tough grade
- Use a tough grade
- Use a grade with high wear
resistance
- Use a coated grade
- Use a grade with high wear
resistance
- Use a coated grade
- Use a tough grade
- Reduce the feed rate
- Eliminate the vibration
- Reduce the feed rate
- Eliminate the vibration
- Reduce the cutting speed
- Reduce the feed rate
- Use coolant properly
- Reduce the cutting speed
- Reduce the feed rate
- Use coolant properly
- Adjust or change the guide
bushing or pilot hole
- Reduce the feed rate
- Correct the misalignment
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26
50
0.10 0.15 0.20
70 90 110
Chip form plays a key role in STS (Single tube system)
and DTS (Double tube system) while large-volume and
high-pressure coolant do so as well. Because chips
are removed through the tube with coolant, proper
chip formation is essential for smooth and steady
evacuation.
Chip formation is affected by multiple factors, such
as workpiece material, chipbreaker geometry, cutting
speed, feed, type of coolant, and coolant temperature.
Suitable chip formation depends on cutting operation
but is controllable by changing the cutting conditions.
Generally, chip length should be 3 - 4 times its width,
but tends to be longer with difficult-to-cut materials. In
that case, chip evacuation will be improved by making
chips thinner, usually by reducing the feed rate.
The graph below shows chip formation for different
cutting speeds and feeds. Short chips are created by
reducing the cutting speed or increasing the feed.
Chip form in deep hole drilling
Chip formation
How to decide the chip form
Cutting condition and chip form
Workpiece material: Low alloy steel (AISI4340)
Cutting speed: Vc (m/min)
Feed: f (mm/rev)
Condition
Tungaloy 27
Full ball radius Corner radius
Counterboring Head
Compound radius
Flat bottom radius Special step drill
Various types of special tooling are available upon request.
Some examples are shown below.
Please contact your sales representative for further information.
Not only the standard grades and combinations as shown in the catalogue,
but also various types of special grades and combinations are available
through years of experience and research.
Applying suitable special grades can make the productivity high and stable
with work-piece materials that are difficult to process with standard grades,
or even under unstable cutting conditions.
Please contact your sales representative for further information.
Special tooling
Special grade
