Sumitomo General Catalog 2025-2026

P Steel M Stainless Steel K Cast Iron N Non-Ferrous Metal S Exotic Alloy H Hardened Steel Turning 80˚ Diamond Negative Inserts CN 80° Diamond Neg. With Hole CN ¢¢ 32 ˜ Dimensions (inch) Cutting Edge Length L .3819 Thickness S .1250 Inscribed Circle IC .3750 Hole Dia. D1 .1500 80° L

Indexable Insert

RE

Information in "Shape" column

IC

EFL

Name of Chipbreaker

.12

Application Range

.08

Recommended Part Material

.04

Chipbreaker Rake Angle

0

.008 .016 .024

10 °

Feed Rate (f) (inch/rev)

S

: Interrupted Cutting 1st Recommended : Interrupted Cutting 2nd Recommended

: General Cutting 1st Recommended : General Cutting 2nd Recommended

: Continuous Cutting 1st Recommended : Continuous Cutting 2nd Recommended

B

Coated Cermet

Coated Carbide

Carbide

Cermet

C7

E12

Applicable External Holders

Applicable Internal Holders

Nose Radius

Application Range

Shape

Sumitomo Cat. No.

ISO Cat. No.

RE

EFB

CNMG321EFB CNMG090304N-FB .0156 CNMG322EFB CNMG090308N-FB .0313

Q Q

Q ★★ Q ★★

Q Q

★ ★

( a p )

.08

.04

( f )

0

.008 .016

27°

EFL

CNMG322EFL CNMG090308N-FL .0313

Q

QQQQQ QQ

.08 ( a p )

.04

( f )

0

.016 .008

10°

EFE

CNMG321EFE CNMG090304N-FE .0156 ★★★★ CNMG322EFE CNMG090308N-FE .0313 ★★★★

Q Q

Q ★★ Q ★★

Q Q

★★ ★★

( a p )

.08

C

.04

( f )

0

.008

.016

20°

ELU

CNMG321ELU CNMG090304N-LU .0156 ★★★ CNMG322ELU CNMG090308N-LU .0313 ★★★

Q Q

Q ★★ Q ★★

Q Q

FF FF

★ ★

.08 ( a p )

D

.04

( f )

0

.008 .016

10°

ESU

CNMG321ESU CNMG090304N-SU .0156 ★●★ CNMG322ESU CNMG090308N-SU .0313 ★●★

Q Q

QQQQQ QQ QQQQQ QQ

F F

.08 ( a p )

R

.04

( f )

0

13°

.008 .016

EGU

CNMG321EGU CNMG090304N-GU .0156 ★★★★ CNMG322EGU CNMG090308N-GU .0313 ★●●★

Q Q

QQQQQ QQ QQQQQ QQ

★★★ ★★★

0 .08 .16 .24 ( a p )

S

FF

( f )

.008 .016 .024

EUX

CNMG321EUX CNMG090304N-UX .0156 CNMG322EUX CNMG090308N-UX .0313

Q Q

QQQQQ QQ QQQQQ QQ

( a p )

★ ●

0 .08 .16 .24

T

F

( f )

0 °

.008 .016 .024

ENG

CNMG321ENG CNMG090304N-UG .0156 CNMG322ENG CNMG090308N-UG .0313

Q Q

QQQQQ QQ QQQQQ QQ

F F

★★ ●★

( a p )

0 .08 .16 .24

V

: Interrupted Cutting 1st Recommended : Interrupted Cutting 2nd Recommended

: General Cutting 1st Recommended : General Cutting 2nd Recommended

: Continuous Cutting 1st Recommended : Continuous Cutting 2nd Recommended

( f )

.008 .016 .024

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

CN ¢¢ 32.5 ˜ Dimensions (inch)

W

Cutting Edge Length L .3819 Thickness S .1563 Inscribed Circle IC .3750 Hole Dia. D1 .1500

Coated Cermet Cermet

Coated Carbide

Carbide

Nose Radius

Application Range

Shape

Sumitomo Cat. No.

ISO Cat. No.

RE

ESU

CNMG32.51ESU CNMG09T304N-SU .0156 ★★★ CNMG32.52ESU CNMG09T308N-SU .0313 ★★★

Q Q

QQQQQ QQ QQQQQ QQ

.08 ( a p )

.04

( f )

0

13°

.008 .016

ENG

CNMG32.51ENG CNMG09T304N-UG .0156 CNMG32.52ENG CNMG09T308N-UG .0313

Q Q

QQQQQ QQ QQQQQ QQ

★ ★

( a p )

0 .08 .16 .24

( f )

B20

.008 .016 .024

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