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 ¢¢ 43 ˜ Dimensions (inch) Cutting Edge Length L .5079 Thickness S .1875 Inscribed Circle IC .5000 Hole Dia. D1 .2031 80° L

Indexable Insert

RE

IC

Grade Selection

A2, A3

Chipbreaker Selection B10 on Insert Grade Selection by Part Material

A10 on

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

L30 on

M10

B130

Coated Cermet

SUMIBORON (CBN) Inserts

SUMIDIA (PCD) Inserts

Ceramic Inserts

Coated Carbide

Carbide

Cermet

C5

E12

Applicable External Holders

Applicable Internal Holders

Nose Radius

Application Range

Shape

Sumitomo Cat. No.

ISO Cat. No.

Q

RE

ESE

CNMG431ESE CNMG120404N-SE .0156 ●●●● F F CNMG432ESE CNMG120408N-SE .0313 ●●●● FFF CNMG433ESE CNMG120412N-SE .0469 ●●●● F

Q Q Q

Q ●★★● Q ★★★●

Q Q

( a p )

0 .08 .16 .24

QQQQQ QQ

( f )

.008 .016 .024

ESEW

CNMG431ESEW CNMG120404N-SEW .0156 ●●● CNMG432ESEW CNMG120408N-SEW .0313 ●●● CNMG433ESEW CNMG120412N-SEW .0469 ●●●

Q Q Q

Q ★★ ● Q ★★ ●

Q Q

FF FF FF

.16 ( a p )

QQQQQ QQ

.08

C

Ž B134

( f )

0

.008 .020 .032

Wiper

EEF

CNMG431EEF CNMG120404N-EF .0156 ★★★● ●●● F CNMG432EEF CNMG120408N-EF .0313 ★★★● ●●● F CNMG433EEF CNMG120412N-EF .0469 ★●★★ ●●● CNGG430.5EEF CNGG120402N-EF .0078 QQQQQQQQQQQQQQQ CNGG431EEF CNGG120404N-EF .0156 QQQQQQQQQQQQQQQ CNGG432EEF CNGG120408N-EF .0313 QQQQQQQQQQQQQQQ

Q ●●● FF Q ●●● FF

QQQQQ ●● QQ QQQQQ ●● QQ QQQQQ QQ

( a p )

.08

Q ●●●

.04

F

D

0

( f )

20°

.016 .008

EEF

QQQQ QQ QQQQ QQ QQQQ QQ

●●●

( a p )

.08

●●● FF

.04

●★● F

R

0

( f )

20°

.016 .008

ESX

CNMG431ESX CNMG120404N-SX .0156 ●●●● FFF CNMG432ESX CNMG120408N-SX .0313 ●●●● FFF CNMG433ESX CNMG120412N-SX .0469 ★●●★ FFF

Q Q Q

Q ●★ ★ Q ●★ ●

Q Q

( a p )

.08

QQQQQ QQ

.04

S

( f )

0

.008

.016

EEX

CNMG431EEX CNMG120404N-EX .0156 CNMG432EEX CNMG120408N-EX .0313 CNMG433EEX CNMG120412N-EX .0469

Q ●●● FF ★ QQQQQ ●

Q

●●● F ●●● F ●●● F

0 .08 .04 .12 ( a p ) 0 .08 .04 .12 .16 ( a p ) 0 .08 .04 .12 .16 ( a p ) 0 .08 .16 .24 ( a p )

Q ●●● FF ★ QQQQQ QQ Q ●●● FF ★ QQQQQ QQ

T

( f )

.008 .016

16°

EUP

CNMG431EUP CNMG120404N-UP .0156 CNMG432EUP CNMG120408N-UP .0313 CNMG433EUP CNMG120412N-UP .0469

Q ●●● FF ★ QQQQQ QQ Q ●●● FF ★ QQQQQ QQ Q ●●● FF ★ QQQQQ QQ

FF FF FF

●● F ●● F ●● F

●●

●●●

V

( f )

.008 .016 .024

10°

(P)

CNGP432 CNGP433

CNGP120408 CNGP120412

.0313 QQQQQQQQQQQQQQQ .0469 QQQQQQQQQQQQQQQ

QQQQ QQ QQQQ QQ

●●● ●●●

W

( f )

.008 .016 .024

10°

EGU

CNMG431EGU CNMG120404N-GU .0156 ●●●● FFF ●●● F ★●★ Q ●●● ★ Q ★★ ★ Q CNMG432EGU CNMG120408N-GU .0313 ●●●● FFF ●●● F ●●● Q ●●● ● Q ●★ ● Q CNMG433EGU CNMG120412N-GU .0469 ●●●● FFF ●●● F ★●● Q ●●● ★ QQQQQ QQ CNMG434EGU CNMG120416N-GU .0625 ★★★★ FF ★●★ Q QQQQQ QQ

( f )

.008 .016 .024

B23

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