Sumitomo General Catalog 2025-2026

Turning Square Negative Inserts

Indexable Insert

SN Square Neg. Without Hole

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

SN ¢¢ 43 ˜ Dimensions (inch)

Cutting Edge Length L .5000 Thickness S .1875 Inscribed Circle IC .5000

B

Coated Cermet

Coated Carbide

Carbide

Cermet

L65

L109

SUMIBORON (CBN) Inserts

Applicable External Holders

Nose Radius

Application Range

Shape

Sumitomo Cat. No.

ISO Cat. No.

RE

SNMN432 SNMN120408 SNMN433 SNMN120412 SNMN434 SNMN120416

★★★ F Q ★★★ ★★★ F Q ★★★ ★★★ F Q ★★★

Q

Q

.0313 .0469 .0625

★★

QQQQQ QQ QQQQQ QQ

Q

SNG432 SNGN120408 .0313 QQQQQQQQQQQQQQQQQQQQQQQ

★★ QQ Q

Q

C

D

R

S

T

V

W

B50

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