1. HOW TO READ THE STANDARD
OF CBN&PCD TURNING INSERTS
a How this section page is organized
z Organized according to turning insert shape.
(Refer to the index on the next page.)
x Inserts are arranged in order of :
• Negative inserts (with hole|without hole)
• Positive inserts (with hole|without hole)
GRADE APPLICATION RECOMMENDED FIGURE SHOWING THE INSERT GEOMETRY
FOR EACH WORK MATERIAL D1 : Diameter of Inscribed Circle S1 : Thickness
cutting conditions suitable for each type of work material Re : Corner Radius & D2 : Diameter of Hole
is shown as a general guide to select the grade. Dimensions are detailed in the "Dimensions" column.
: Stable Cutting : General Cutting : Unstable Cutting
STOCK STATUS
INDICATION OF
SHAPE & NEGATIVE/POSITIVE INSERT NUMBER
ANGLE MARK TYPE
TITLE OF PRODUCT INSERT GRADES
PRODUCT SECTION ACCORDING TO THE INSERT DIMENSIONS
INSERT TYPE
CBN TURNING INSERTS [NEGATIVE]
80°
H
CN
Hardened Materials
TYPE INSERTS
WITH HOLE
H Hardened Materials
CBN K Cast Iron
Cutting Conditions (Guide) :
K Cast Iron
Cutting Conditions (Guide) : CBN
Work : Stable Cutting : General Cutting : Unstable Cutting Work : Stable Cutting : General Cutting : Unstable Cutting
Material S Heat-resistant Alloy, Titanium Alloy Material S Heat-resistant Alloy, Titanium Alloy
CBN TURNING INSERTS
CBN TURNING INSERTS
Honing (Last letter of order number) : Refer to page B011. Honing (Last letter of order number) : Refer to page B011.
Sintered Alloy Sintered Alloy
Coated CBN Dimensions (mm) Coated CBN Dimensions (mm)
Holder Page
Holder Page
CBN CBN
Applicable
Applicable
MBC010
MBC020
MBC010
MBC020
MB8025
MB4020
MB8025
MB4020
BC8020
BC8020
Shape Order Number Geometry Shape Order Number Geometry
MB810
MB825
MB835
MB710
MB730
MB810
MB825
MB835
MB710
MB730
D1 S1 Re D2 D1 S1 Re D2
NEW PETIT CUT NP-CNGA120404GA4 a a 12.7 4.76 0.4 5.16 NEW PETIT CUT NP-CNGA120404G2 a 12.7 4.76 0.4 5.16
80° C010
120408GA4 a a 12.7 4.76 0.8 5.16 120408G2 a 12.7 4.76 0.8 5.16 C011
Re
120412GA4 a a 12.7 4.76 1.2 5.16 120412G2 a 12.7 4.76 1.2 5.16 E013
øD2
NEG 120404GN4 a 12.7 4.76 0.4 5.16 120404T2 a 12.7 4.76 0.4 5.16
E036 NEG
C010 E042
WITH 120408GN4 a 12.7 4.76 0.8 5.16
80° C011 120408T2 a 12.7 4.76 0.8 5.16 D1 H006 WITH
Re S1
HOLE E013 ─ 008 HOLE
120412GN4 a 12.7 4.76 1.2 5.16 E036 120412T2 a 12.7 4.76 1.2 5.16
øD2
120404FS4 a 12.7 4.76 0.4 5.16 E042 NEW PETIT CUT TNP-CNGA120404G2 a 12.7 4.76 0.4 5.16
2 C010
120408FS4 a 12.7 4.76 0.8 5.16 D1 S1
H006
─ 008
* 120408G2 a 12.7 4.76 0.8 5.16
80°
Re C011
120412FS4 a 12.7 4.76 1.2 5.16 120412G2 a 12.7 4.76 1.2 5.16 E013
øD2
E036
120404TA4 a a 12.7 4.76 0.4 5.16 120404T2 a 12.7 4.76 0.4 5.16 E042
120408TA4 a a 12.7 4.76 0.8 5.16 120408T2 a 12.7 4.76 0.8 5.16 D1 S1 H006
─ 008
120412TA4 a a 12.7 4.76 1.2 5.16 120412T2 a 12.7 4.76 1.2 5.16
NEW PETIT CUT NP-CNGA120404GAWS4 a 12.7 4.76 0.4 5.16 80° C010 NEW PETIT CUT NP-CNGA120404GAWS2 a a 12.7 4.76 0.4 5.16
(With Wiper) Re (With Wiper) 80° C010
120408GAWS4 a 12.7 4.76 0.8 5.16 C011 1 120408GAWS2 a a 12.7 4.76 0.8 5.16
* E013 * Re C011
E013
øD2
120412GAWS4 a 12.7 4.76 1.2 5.16 E036 120412GAWS2 a a 12.7 4.76 1.2 5.16
øD2
E042 E036
120404GSWS2 a 12.7 4.76 0.4 5.16
H006 E042
D1 S1
─ 008 120408GSWS2 a 12.7 4.76 0.8 5.16 D1 S1 H006
NEW PETIT CUT BF-CNGG120404TA4 ─ 008
a 12.7 4.76 0.4 5.16 80° C010 120412GSWS2 a 12.7 4.76 1.2 5.16
Re C011
120408TA4 a 12.7 4.76 0.8 5.16 NEW PETIT CUT BF-CNGM120404TA2 a 12.7 4.76 0.4 5.16 80° C010
E013 Re C011
120412TA4 a 12.7 4.76 1.2 5.16 E036 120408TA2 a 12.7 4.76 0.8 5.16
øD2
E013
E042
120412TA2 a 12.7 4.76 1.2 5.16 øD2 E036
H006
D1 S1 ─ 008 E042
(With Breaker)
H006
NEW PETIT CUT NP-CNGA120404GA2 D1 S1
a a 12.7 4.76 0.4 5.16 (With Breaker) ─ 008
120408GA2 a a 12.7 4.76 0.8 5.16 NEW PETIT CUT BM-CNGM120408TA2 a 12.7 4.76 0.8 5.16 80° C010
Re C011
120412GA2 a a 12.7 4.76 1.2 5.16 120412TA2 a 12.7 4.76 1.2 5.16
E013
120404GS2 a a a 12.7 4.76 0.4 5.16 E036
øD2
a a a
E042
120408GS2 12.7 4.76 0.8 5.16
H006
D1 S1
120412GS2 a a a 12.7 4.76 1.2 5.16 (With Breaker) ─ 008
120404GN2 a 12.7 4.76 0.4 5.16 NEW PETIT CUT NP-CNMA120404GS a a 12.7 4.76 0.4 5.16
80° C010
120408GN2 a 12.7 4.76 0.8 5.16 C011 120408GS a a 12.7 4.76 0.8 5.16
Re
120412GN2 a 12.7 4.76 1.2 5.16 E013 120412GS a a 12.7 4.76 1.2 5.16
øD2
E036
120404FS2 a a 12.7 4.76 0.4 5.16 120404G a a 12.7 4.76 0.4 5.16
E042 C010
80°
120408FS2 a a 12.7 4.76 0.8 5.16 D1 S1 H006 120408G a a 12.7 4.76 0.8 5.16 Re C011
─ 008 E013
120412FS2 a a 12.7 4.76 1.2 5.16 120412G a a 12.7 4.76 1.2 5.16
øD2
E036
120404TA2 a a a 12.7 4.76 0.4 5.16 120404F r a a 12.7 4.76 0.4 5.16 E042
120408TA2 a a a 12.7 4.76 0.8 5.16 120408F r a a 12.7 4.76 0.8 5.16 D1 S1 H006
─ 008
120412TA2 a a a 12.7 4.76 1.2 5.16 120412F r a a 12.7 4.76 1.2 5.16
120404TS2 a 12.7 4.76 0.4 5.16 120404T r a a a 12.7 4.76 0.4 5.16
120408TS2 a 12.7 4.76 0.8 5.16 120408T r a a a 12.7 4.76 0.8 5.16
120412TS2 a 12.7 4.76 1.2 5.16 120412T r a a a 12.7 4.76 1.2 5.16
* Please refer to B014 before using the wiper insert. *1 The order number is for a 10-insertthe wiper insert.
Please refer to B014 before using
*2 pack. Please specify order number, grade and quantity.
a : Inventory maintained in Japan. r : Non stock, produced to order only. GRADES B004
(1 insert in one case)
B022 IDENTIFICATION B002 B023
LEGEND FOR STOCK STATUS MARK PAGE REFERENCE
is shown on the left hand page of ·CHIP BREAKERS
each double-page spread. ·GRADES
PHOTO OF INSERT ·TECHNICAL DATA
indicates reference pages, on the right hand page of
each double-page spread.
PRODUCT NAME APPLICABLE HOLDER PAGE
indicates reference pages for details of applicable holders.
a To Order : Please specify
zinsert number and xgrade.
B000

2. TURNING TOOLS
CBN & PCD INSERT STANDARDS
CBN & PCD INSERT GRADES
INDENTIFICATION .................................................... B002
CBN (CUBIC BORON NITRIDE) ............................... B004
PCD (SINTERED DIAMOND) .................................... B015
CLASSIFICATION OF CBN & PCD INSERTS .......... B016
STANDARD OF CBN TURNING INSERTS STANDARD OF PCD TURNING INSERTS
NEGATIVE INSERTS WITH HOLE NEGATIVE INSERTS WITH HOLE
CNppTYPE...RHOMBIC 80° .......... B022 CNppTYPE...RHOMBIC 80° .......... B052
DNppTYPE...RHOMBIC 55° .......... B025 DNppTYPE...RHOMBIC 55° .......... B052
SNppTYPE...SQUARE 90° ........... B027 SNppTYPE...SQUARE 90° ........... B053
TNppTYPE...TRIANGULAR 60° ..... B028 T NppTYPE...TRIANGULAR 60° ..... B053
VNppTYPE...RHOMBIC 35° .......... B030 VNppTYPE...RHOMBIC 35° .......... B054
WNppTYPE...TRIGON 80° ............ B031
NEGATIVE INSERTS WITHOUT HOLE NEGATIVE INSERTS WITHOUT HOLE
CNppTYPE...RHOMBIC 80° .......... B032 SNppTYPE...SQUARE 90° ........... B055
DNppTYPE...RHOMBIC 55° .......... B032
RNppTYPE...ROUND ................. B033
SNppTYPE...SQUARE 90° ........... B034
TNppTYPE...TRIANGULAR 60° ..... B035
POSITIVE INSERTS WITH HOLE POSITIVE INSERTS WITH HOLE
CCppTYPE...RHOMBIC 80° .......... B036 CCppTYPE...RHOMBIC 80° .......... B056
CPppTYPE...RHOMBIC 80° .......... B039 CP ppTYPE...RHOMBIC 80° .......... B056
DCppTYPE...RHOMBIC 55° .......... B040 DCppTYPE...RHOMBIC 55° .......... B057
TCppTYPE...TRIANGULAR 60° ..... B042 SP ppTYPE...SQUARE 90° ........... B057
TP ppTYPE...TRIANGULAR 60° ..... B043 TC ppTYPE...TRIANGULAR 60° ..... B058
VB ppTYPE...RHOMBIC 35° .......... B045 TP ppTYPE...TRIANGULAR 60° ..... B059
VC ppTYPE...RHOMBIC 35° .......... B046 VB ppTYPE...RHOMBIC 35° .......... B061
WCppTYPE...TRIGON 80° ............ B046 VC ppTYPE...RHOMBIC 35° .......... B061
WCppTYPE...TRIGON 80° ............ B062
WPppTYPE...TRIGON 80° ............ B062
DE ppTYPE...RHOMBIC 55° .......... B063
TE ppTYPE...TRIANGULAR 60° ..... B063
VD ppTYPE...RHOMBIC 35° .......... B064
POSITIVE INSERTS WITHOUT HOLE POSITIVE INSERTS WITHOUT HOLE
SPppTYPE...SQUARE 90° ........... B048 S PppTYPE...SQUARE 90° ........... B065
TBppTYPE...TRIANGULAR 60° ..... B049 T P ppTYPE...TRIANGULAR 60°...... B065
TP ppTYPE...TRIANGULAR 60° ..... B049
RBGTYPE ................................ B047
RTGTYPE................................. B047
GYTYPE ................................... B050
MGTRTYPE ............................. B051
B001

3. CBN & PCD TURNING INSERTS
IDENTIFICATION
CBN & PCD TURNING INSERTS
m
m
øD1 S1
øD
1
Tolerance of Tolerance of Tolerance of
Symbol Nose Height Inscribed Circle Thickness
m (mm) &D1 (mm) S1 (mm)
G e0.025 e0.025 e0.13
M * e0.08 ─e0.18 e0.05 ─e0.15 e0.13
The surface of insert with
* mark is sintered.
Detail of M Class Insert Tolerance
a Tolerance of Nose Height m (mm)
D.I.C. Triangular Square Rhombic Rhombic Rhombic Round
80° 55° 35°
6.35 e0.08 e0.08 e0.08 e0.11 e0.16 ─
9.525 e0.08 e0.08 e0.08 e0.11 e0.16 ─
12.70 e0.13 e0.13 e0.13 e0.15 ─ ─
a Tolerance of Inscribed Circle &D1 (mm)
BM With Breaker
D.I.C. Triangular Square Rhombic Rhombic Rhombic Round
80° 55° 35°
BF With Breaker
6.35 e0.05 e0.05 e0.05 e0.05 e0.05 ─
T 10-inserts Package NP New Petit Cut
9.525 e0.05 e0.05 e0.05 e0.05 e0.05 e0.05
No mark 1-insert Package No mark Standard Type 12.70 e0.08 e0.08 e0.08 e0.08 ─ e0.08
z Insert Case x Insert Geometry b Tolerance Class
z x c b
T NP - C N G A v n
c Insert Shape v Normal Clearance n Fixing and/or for Chip Breaker
Symbol Insert Shape Symbol Normal Clearance Metric
S Square Hole Chip
B 5° Symbol Hole
Configuration Breaker
Figure
T Triangular
C 7° W With Hole Cylindrical Hole No
C Rhombic80° +
One Countersink One
D Rhombic55° D 15° T With Hole (40─60°) Sided
V Rhombic35°
E 20° B With Hole Cylindrical Hole No
W Trigon +
One Countersink One
R Round N 0° H With Hole (70─90°) Sided
P 11° A With Hole Cylindrical Hole No
One
M With Hole Cylindrical Hole
Sided
Without
N Hole
─ No
X ─ ─ ─ Special Design
B002

4. CBN & PCD TURNING INSERTS
*Thickness istop ofthe bottom of the
insert to the
from
the cutting edge.
Symbol Thickness (mm)
Diameter of Symbol S1 1.39
Inscribed Circle Corner Radius
(mm) 01 1.59 Symbol
(mm)
T0 1.79
3.97 02 04 03 03 06 02 0.2
4.76 L3 08 05 04 04 08 02 2.38
04 0.4
5.56 03 09 06 05 05 09 T2 2.78
08 0.8
6.35 04 11 07 06 06 11
03 3.18
7.94 05 13 09 08 07 13 12 1.2
T3 3.97
9.525 09 06 16 11 09 09 16 16 1.6
12.70 12 08 22 15 12 12 22 04 4.76
. Insert Corner
m Insert Size , Insert Thickness Configuration
m , .
12 04 04 G WS 2 / u
11 u
12
J R u
13 u
14
/ Application (Honing) u Wiper
11 u Number of Teeth
12 u Cutting Edge Angle
13 u Cutting Direction
14
Symbol Honing WS With Wiper 2 2 F 91° Figure Hand Symbol
GA No mark Without Wiper 3 3 J 93°
GS Right R
General Cutting 4 4 No mark Non Restriction
GN
G 6 6 Please pay special attention
when using an indexable
FA No mark 1 insert. Left L
Please refer to page B014 for
FS further information.
Continuous Cutting
FN
F
Neutral N
TA
TS
Interrupted Cutting
TN
T
Please refer to page B011
for further information.
B003

5. CBN & PCD TURNING INSERTS
COATED CBN SERIES
BC8020 / MBC010 / MBC020
CBN & PCD TURNING INSERTS
FEATURES 400
With the expansion of BC8020, Mitsubishi can offer 3 coated CBN
MBC010
grades for machining of hardened steels. These 3 coated CBN
Cutting Speed (m/min)
grades cover a wide range of applications. 300
To achieve longer tool life, Mitsubishi uses a unique
"Particle-activated Sintering Method", combined with increased 200
cutting edge strength. With high crater wear resistance CBN grades
and a wear resistant ceramic coatings, longer tool life and improved
machine efficiency are obtained. 100
BC8020
MBC020
Light Heavy Light Heavy
Continuous Interrupted
Cutting Mode
Main Coating
Grade Grade Features and Application
Component Layer
High efficiency coated CBN
CBN (Medium Grain)
Incleased cutting edge strength and high crater wear resistant CBN grade in
BC8020 combination with a highly wear resistant TiAlN coating, results in longer tool life TiN TiAlN
and improved machining efficiency under heavy duty or interrupting cutting. Al2O3
Coated CBN for High Speed Continuous Cutting CBN (Micro Grain)
MBC010 MBC010 makes the best use of special ceramic binder structure, actualizing high TiN TiN
wear resistance. High wear resistance enables continuous machining at high
Al2O3
speed of over 300m/min.
Coated CBN for general cutting CBN (Micro Grain)
MBC020 Uses a CBN substrate that has high cutting edge toughness. The TiAlN based TiN TiAlN
coating delivers superb wear resistance. It covers a wide range of applications
Al2O3
from continuous to light interrupted cutting.
CUTTING PERFORMANCE
y Continuous Cutting y Interrupted Cutting
V-T Diagram (VB=0.1mm) Impact frequency before fracturing
400 MBC010
Cutting Speed (m/min)
300 MBC010
MBC020 MBC020
200
BC8020
BC8020
0 10000 20000 30000 40000
100
1 5 10 20 40 50 100 Number of Impacts
Cutting Time (min)
<Cutting Conditions>
<Cutting Conditions> Workpiece : JIS SCM415 (60HRC)
Workpiece : JIS SCM415 (60HRC) External Interrupted Cutting 8 Groove
External Continuous Cutting Insert : NP-CNGA120408GA
Insert : NP-CNGA120408GA Cutting Speed : 150m/min
Feed : 0.1mm/rev Feed : 0.2mm/rev
Depth of Cut : 0.1mm Depth of Cut : 0.2mm
Wet Cutting Dry Cutting
B004

6. BC8020
y CONTINUOUS CUTTING
WEAR RESISTANCE FINISHED SURFACE
CBN & PCD TURNING INSERTS
0.16 10
Fracture
Conventional Coated CBN 8 Conventional Coated CBN
Finished Surface (!m)
0.12
Flank Wear (mm)
6
0.08
BC8020 4 BC8020
0.04
2
0 0
0 2 4 6 8 10 0 2 4 6 8 10
Cutting Time (min) Cutting Time (min)
<Cutting Conditions>
Workpiece : JIS SCr420 (60HRC) Insert : NP-CNGA120408GA
Cutting speed : 150m/min Feed : 0.15mm/rev Depth of Cut : 0.5mm
Wet Continuous Cutting
y INTERRUPTED CUTTING (CRATER WEAR)
FRACTURE RESISTANCE <Cutting Conditions>
Normal wear Workpiece : JIS SCM415 (60HRC)
Medium Interrupted Cutting
Insert : NP-CNGA120408GA
Cutting speed : 150m/min
Feed : 0.15mm/rev
Depth of Cut : 0.15mm
BC8020 Dry Interrupted Cutting
BC8020
Conventional
Coated Fracturing from crater wear
CBN
0 5000 20000 22000 24000 26000 28000 30000
Number of Impacts
Conventional Coated CBN
y INTERRUPTED CUTTING (CHIPPING) <Cutting Conditions>
FRACTURE RESISTANCE Normal wear Workpiece : JIS SCM415 (60HRC)
Heavy Interrupted Cutting
Insert : NP-CNGA120408GA
Cutting speed : 150m/min
Feed : 0.2mm/rev
BC8020 Depth of Cut : 0.2mm
Dry Interrupted Cutting
Conventional BC8020
Coated
CBN
0 5000 10000 15000 20000 25000
Number of Impacts
Chipping
Conventional Coated CBN
BC8020 exhibits excellent cutting performance for severe or interrupted machining.
B005

7. CBN & PCD TURNING INSERTS
MBC010
WEAR RESISTANCE FINISHED SURFACE
CBN & PCD TURNING INSERTS
Fracture Conventional Coated CBN B
Fracture
0.15 Conventional Coated CBN A 6
Finished Surface (!m)
Flank Wear (mm)
Large wear
Conventional Coated CBN B Conventional Coated CBN A
(Tool life)
MBC010
0.1 4
MBC010
0.05 2
0 10 20 30 40 0 10 20 30
Cutting Time (min) Cutting Time (min)
<Cutting Conditions> <Cutting Conditions>
Workpiece : JIS SCM415 (60HRC) Workpiece : JIS SCM415 (60HRC)
Insert : NP-CNGA120408GS2 Insert : NP-CNGA120408GS2
Cutting speed : 300m/min Cutting speed : 150m/min
Feed : 0.05mm/rev Feed : 0.15mm/rev
Depth of Cut : 0.1mm Depth of Cut : 0.2mm
Dry Continuous Cutting Dry Continuous Cutting
MBC010 employs TiN based coating for superior, consistent surface finishes.
MBC020
WEAR RESISTANCE TOUGHNESS
0.10
Conventional
Coated CBN B
Conventional
0.08 Conventional Coated CBN A MBC020
Coated CBN C
Flank Wear (mm)
0.06
MBC020 Conventional
Coated
CBN A
0.04
0.02
Conventional
Coated
CBN B
0.00
0 2 4 6 8 10 12 14 16 0 5 10 15 20
Cutting Time (min) Cutting Time (min)
<Cutting Conditions> <Cutting Conditions>
Workpiece : JIS SCr420 (60HRC) Workpiece : JIS SCr420 (60HRC)
Round bar Insert : NP-CNGA120408GA4
Insert : NP-CNGA120408GA4 Cutting speed : 120m/min
Cutting speed : 220m/min Feed : 0.15mm/rev
Feed : 0.1mm/rev Depth of Cut : 0.15mm
Depth of Cut : 0.1mm Dry Interrupted Cutting
Dry Continuous Cutting
MBC020 exhibits excellent cutting performance for a wide range of applications from continuous through interrupted machining.
B006

8. NON-COATED CBN SERIES
CBN & PCD TURNING INSERTS
FEATURES
400
• CBN tool material is produced by mixing the main component CBN
(cubic boron nitride), which has a hardness second only to
Cutting Speed (m/min)
diamond, with a special ceramic or metal binder. It is then sintered 300
at a pressure of over 5GPa and at a temperature of 1200°C or MB810
higher.
• CBN has lower affinity to iron than diamond. The low affinity and
200
high hardness properties means that sintered CBN delivers a
superior cutting performance especially during high speed MB8025
machining of materials such hardened steel, cast iron and sintered
alloys etc. 100
MB835
MB825
Continuous Light Heavy
Interrupted
Cutting Mode
y HARDENED STEEL MACHINING
Grade Grade Features and Application Main
Component
For General Purpose Turning CBN (Micro Grain)
MB8025 By employing a "Particle-activated Sintering Method", the new sintered CBN technology is TiN
recommended for continuous cutting from medium to high speeds. Al2O3
For High Speed Continuous Cutting CBN
MB810 It features improved wear resistance due to impregnation with larger CBN particles. TiN
Al2O3
For Continuous to Medium Interrupted Cutting CBN (Micro Grain)
MB825 Excellent balance of wear resistance and fracture resistance due to introduction of micro-grain CBN TiC
particles. Al2O3
For Heavy Interrupted Cutting CBN (Micro Grain)
MB835 Improved grade employing micro-grain CBN particles. Excellent fracture resistance for use in heavy TiN
interrupted cutting. Al2O3
CUTTING PERFORMANCE
y Continuous Cutting y Interrupted Cutting
V-T Diagram (VB=0.1mm) Impact frequency before fracturing
MB8025 MB810
400
MB835
MB825
Cutting Speed (m/min)
300 MB8025
MB835 MB825
200
MB810
0 10000 20000 30000 40000
Number of Impacts
100
1 5 10 20 40 50 100 <Cutting Conditions>
Cutting Time (min) Workpiece : JIS SCM415 (60HRC) Feed : 0.15mm/rev
External Interrupted Depth of Cut : 0.2mm
<Cutting Conditions>
Cutting 8 Groove Dry Cutting
Workpiece : JIS SCM415 (60HRC) Insert : NP-CNGA120408
External Continuous Cutting Cutting Speed : 150m/min
Insert : NP-CNGA120408
Feed : 0.1mm/rev
Depth of Cut : 0.1mm
Wet Cutting
B007