Sumitomo General Catalog 2025-2026

Turning Square Negative Inserts

Indexable Insert

SN Square Neg. With Hole SN ¢¢ 43 ˜ Dimensions (inch) Cutting Edge Length L .5000 Thickness S .1875 Inscribed Circle IC .5000 Hole Dia. D1 .2031

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)

L

S

90°

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

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

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

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

B

L62

M27

SUMIBORON (CBN) Inserts

SUMIDIA Binderless Inserts

Coated Cermet

Coated Carbide

Carbide

Cermet

M16

B131

SUMIDIA (PCD) Inserts

Ceramic Inserts

C14

E20

Applicable External Holders

Applicable Internal Holders

Nose Radius

Application Range

Shape

Sumitomo Cat. No.

ISO Cat. No.

RE

SNMG431ENJ SNMG120404N-UJ

Q

QQQQQ QQ

ENJ

F

.0156

( a p )

0 .08 .16 .24

( f )

0 °

.008 .016 .024

SNMG431EUP SNMG120404N-UP SNMG432EUP SNMG120408N-UP SNMG433EUP SNMG120412N-UP SNMG431EGU SNMG120404N-GU SNMG432EGU SNMG120408N-GU SNMG433EGU SNMG120412N-GU SNMG434EGU SNMG120416N-GU SNMG432EGE SNMG120408N-GE SNMG433EGE SNMG120412N-GE SNMG434EGE SNMG120416N-GE SNMG431EUX SNMG120404N-UX SNMG432EUX SNMG120408N-UX SNMG433EUX SNMG120412N-UX SNMG434EUX SNMG120416N-UX SNMG432ENG SNMG120408N-UG SNMG433ENG SNMG120412N-UG SNMG434ENG SNMG120416N-UG SNMG431EEG SNMG120404N-EG SNMG432EEG SNMG120408N-EG SNMG433EEG SNMG120412N-EG

Q

QQQQQ QQ

EUP

FF FF FF

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

.0156 .0313 .0469

★★ ★● ★★

Q ★●● ★ QQQQQ QQ Q ★★● ★ QQQQQ QQ

●●

C

( f )

10°

.008 .016 .024

Q Q

Q ★★● ★ Q ★★ ★ Q ★★● ★ Q ★★ ●

EGU

FF ●★★ F ★★●

( a p )

.0156 ★★●★

.08 .16 .24

.0313 ●●●● FFF ●●★ F ★●● .0469 ●●●★ FFF ●●★ F ★●●

Q ●★★ ★ QQQQQ QQ

Q Q Q Q Q Q Q Q Q Q Q

QQQQQ QQ QQQQQ QQ QQQQQ QQ QQQQQ QQ QQQQQ QQ QQQQQ QQ QQQQQ QQ QQQQQ QQ QQQQQ QQ QQQQQ QQ QQQQQ QQ

F

D

( f )

.0625 ★●●★

● ★●●

0

.008 .016 .024

EGE

.0313 ●★●★ FFF .0469 ★★★★ FFF .0625 ●★●★ FFF

( a p )

0 .08 .16 .24

R

( f )

.008 .016 .024

EUX

F

( a p )

.0156

.08 .16 .24

.0313 ★★●★ FFF

F

.0469 ★●●●

.0625 ●★●● FFF

( f )

0

S

0 °

.008 .016 .024

ENG

FF FF

( a p )

.0313 ● ●●

.08 .16 .24

.0469 .0625

★★

( f )

0

.008 .016 .024

T

Q ★★● Q ●●●

QQQQQ QQ

EEG

( a p )

.0156 ★★★● ●★★ .0313 ★★●● ●●● F .0469 ★★★● ●●● F

0 .08 .16 .24

QQQQQ QQQQQ

★ QQ ● QQ

F

Q ★●●●

( f )

0 °

.008 .016 .024

SNMR433M SNMG120412R-UM .0469 QQQQQQQQQQQQQQQQQQQQQQQ

● QQ Q

(R/L)M

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

V

( f )

0 °

.008 .016 .024

SNPR431M SNGG120404R-UM SNPL431M SNGG120404L-UM SNPR432M SNGG120408R-UM SNPL432M SNGG120408L-UM SNPR433M SNGG120412R-UM

★● QQ Q ★★ QQ Q

.0156 QQQQQQQQQQQQQQQQQQQQQQQ .0156 QQQQQQQQQQQQQQQQQQQQQQQ

(R/L)M

W

.0313 QQQQQQQQQQQQQQQ .0313 QQQQQQQQQQQQQQQ

★★ ★★

★★ ★★

( f )

.008 .016 .024

.0469 QQQQQQQQQQQQQQQQQQQQQQQ

★★ QQ Q

0 °

SNMA431 SNMA432 SNMA433 SNMA434 SNMA435 SNGA431 SNGA432 SNGA433

SNMA120404 SNMA120408 SNMA120412 SNMA120416 SNMA120420 SNGA120404 SNGA120408 SNGA120412

★★★ F Q ●●● F Q ★●● F Q ★★● F Q ★★★ F Q

QQQQQ QQ

.0156 .0313 .0469 .0625 .0781

Q

★ Q

Q

QQQQQ QQ QQQQQ QQ QQQQQ QQ QQQQ QQ

.0156 QQQQQQQQQQQQQQQ F .0313 QQQQQQQQQQQQQQQ F

Q

.0469

B42

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