Sumitomo General Catalog 2025-2026

T V W

T V W

By Cutting Conditions Chipbreaker Selection SUMIBORON Insert CBN W C D T R V S W C D T R V S W C D T R V S W C D T R V S W C D T R V S W C D T R V S C D T R V S C D T R V S C D T R V S C D T R V S AX Type AY Type EM Type W W W W

R

S

C D

T

V

W

R

S

C D

T

V

W

AX Type

AY Type

pe

R R R R R R R R R

S S S S S S S S S

R R R R R R

S S S S S S S S S S S S S S S S S S S S

C D C D C D C D C D C D

C D C D C D C D

R

S

C D

2.50

2.50

T T T T T T T T T

V V V V V V V V V

W W W W W W W W W

T T T T T T T T T T T T

V V V V V V V V V V V V

W W W W W W W W W W W W

2.50

2.5

2.50

2.5

T

V

W

LV

FV

PMK N S H Drastically improved chip control in finishing of hardened steel. 30°

PMK N S H Drastically improved chip control in finishing of hardened steel. 15°

0.05

0.05

15°

30°

R

S

C D

T

V

W

0.4

0.60

45°

0.05

30°

Break Master

Break Master

-35°

C D C D C D 0° 7°

C D C D 0° 7°

R

S

C D

T

V

W

C D C D C D RH Type R R R SV

W W W PMK N S H Significantly improved chip control with carburised layer removal T T T V V V S S S

R R FB Type

C D C D GH Type

LB Type T R S

C D

V

W

RH Type

FB Type

LB Type

B

ype

0.84

0.30

0.15 0.30

0.50

0.50

3.50

3.50

0.80

0.80

R R R R R R

S S S S S S

R R R R R R R R R R R R

C D C D Break Master C D

C D C D C D C D

R

S

C D

T T T T T T

V V V V V V

W W 30° W 15°

T

V

W

15°

-15°

-15°

20°

20°

15°

15°

-35°

C D C D (mm) C D

R

S

C D

W W W

T

V

W

6

SUMIDIA Insert W C D T R V S W C D T R V S 4

PCD W T V

C D C D GD C D C D

R

S

C D

T

V

W

R Depth of Cut d e p t h

S

C D 2

T

V

W

T

V

W

C D DM

LD

LD Type R S

S 0.2 Feed Rate (mm/rev) Ideal breaker for finishing of aluminum alloy thanks to special cutting edge shape PMK N S H 0.4 0.6

Ideal breaker for medium finishing to general machining of aluminum alloy thanks to special cutting edge shape PMK N S H

W Perfect breaker for high-speed finishing of aluminum alloy PMK N S H T V

R R R R R R R R R R R

C D C D C D

0

T T T T T T T T T T T

V V V V V V V V V V V

W W W W W W W W W W W

T T T T T T

V V V V V V

W W W W W W

Type

ype

Type

S S S S S S S S S S

0.4

0.4

1.5

0.8

0.8

C D C D 7° 11° C D Break Master

C D C D C D C D 7° 11°

R

S

C D

T

V

W

20°

20°

25°

25°

Break Master

Break Master

NFCCMX21.5 ™

NFCCMX21.5 ™

NU-CCMT32.5 ™

C D 7° 11° (mm)

C

C D C D C D C D C D

R

S

T

V

W

6

Relief Angle 7° Pos. 11° Pos.

R Depth of Cut d e p t h 4

R

S

C D

S

C D 2

T

V

W

T

V

W

S C D R T V W

S C D R T V W

0

0.2

0.4

0.6

D

Feed Rate (mm/rev)

R R

S S

R

S

C D C D

C D

R

S

C D

T T

V V

W W

T

V

W

T

V

W

Bumpy Insert Standard Breaker Handed Breaker Break Master (CBN/PCD)

umpy Insert Standard Breaker Handed Breaker reak Master (CBN/PCD)

For Chamfering

C D For Chamfering R

R R

S S

S

C D C D

R

S

C D

T T

V V

W W

T

V

W

T

V

W

R

R R

S S

R

S

C D C D

C D

R

S

C D

T T

V V

W W

T

V

W

T

V

W

S

R

S

R

S

C D

C D

R

S

C D

T

V

W

T

V

W

T

V

W

S C D R T V W

R

S

R

S

C D

C D

R

S

C D

T

V

W

T

V

W

T

V

W

T

R

S

R

S

C D

C D

R

S

C D

T

V

W

T

V

W

T

V

W

S C D R T V W

S C D R T V W

R

S

C D

T

V

W

V

Bumpy Chipbreaker

Standard Chipbreaker

Handed Chipbreaker

S C D R T V W

Break Master (CBN/PCD)

W

Applicable Part Material: P Steel M Stainless Steel K Cast Iron N Non-Ferrous Metal S Exotic Alloy H Hardened Steel

Chipbreaker Application Range

SUMIBORON (For Hardened Steel) (Inscribed Circle up to .5000inch)

SUMIBORON (Carburised Layer Removal) (Inscribed Circle up to .5000inch)

SUMIDIA (For Aluminum Alloy)

H

N

H

.028

.028

.08

.020

.020

SV

GD

.04

.012

.012

LV

FV

.004

.004

LD

0

0

0

.004 .008 .012

.004 .008 .012

.004 .008 .012 .016

Feed Rate f (inch/rev)

Feed Rate f (inch/rev)

Feed Rate f (inch/rev)

Indicated chipbreaker application ranges and shapes are representative values only. Actual values may change according to the actual catalog number. For details, refer to "Stock Items" in Chapter B.

B15

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