Sumitomo General Catalog 2025-2026

Turning Square Positive Inserts

Indexable Insert

RE

SP Square 11° Pos. Without Hole SP ¢¢ 2.51.5 ˜ Dimensions (inch) Cutting Edge Length L .3125 Thickness S .0937 Inscribed Circle IC .3125

Information in "Shape" column

IC

EFL

Name of Chipbreaker

.12

Application Range

.08

Recommended Part Material

.04

Chipbreaker Rake Angle

0

.008 .016 .024

S

10 °

Feed Rate (f) (inch/rev)

L

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

Coated Cermet

Coated Carbide

Carbide

Cermet

Nose Radius

Application Range

Shape

Sumitomo Cat. No.

ISO Cat. No.

RE

SPG2.51.51 SPGN070204

.0156 QQQQQQQQQQQQQQQQQQQQQQQ

QQ ★ Q

Q

*1: Photo shows left hand.

: 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

SP ¢¢ 32 ˜ Dimensions (inch)

C

Cutting Edge Length L .3750 Thickness S .1250 Inscribed Circle IC .3750

L67 SUMIDIA (PCD) Inserts

M17

SUMIBORON (CBN) Inserts

Coated Cermet

Coated Carbide

Carbide

Cermet

D

E45

Applicable Internal Holders

Nose Radius

Application Range

R

Shape

Sumitomo Cat. No.

ISO Cat. No.

RE

SPMR321EFK SPMR090304N-FK .0156 QQQQQQQQQQQQQQQQQQQQQQQ ★ ★● QQ Q SPMR322EFK SPMR090308N-FK .0313 QQQQQQQQQQQQQQQQQQQQQQQ ●★★● QQ Q

EFK

( a p )

.08

.04

S

( f )

0

0 °

.016 .008

SPMR321ENF SPMR090304N-SF

Q Q

QQQQQ QQ QQQQQ QQ

ENF

FF FF

.0156

( a p )

★★ ★★

.08 .04 .12 .16

SPMR322ENF SPMR090308N-SF .0313

T

( f )

0

0 °

.008 .016 .024

SPMR321EUJ SPMR090304N-UJ .0156 SPMR322EUJ SPMR090308N-UJ .0313

Q Q

QQQQQ QQ QQQQQ QQ

EUJ

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

★★

V

( f )

0 °

.008 .016 .024

SPMN321 SPMN322

SPMN090304 SPMN090308

★●★ F Q ★★★ F Q

Q Q

Q Q

.0156 .0313

Q

F

●●

★★

SPG321 SPG322

SPGN090304 SPGN090308

.0156 QQQQQQQQQQQQQQQQQQQQQQQ

★● QQ ★ Q

W

Q

.0313 QQQQQQQQQQQQQQQ

★★

★● ★

*1: Photo shows left hand.

B98

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