Sumitomo General Catalog 2025-2026

Turning 80˚ Diamond Negative Inserts

Indexable Insert

CN 80° Diamond Neg. With Hole CN ¢¢ 54 ˜ Dimensions (inch) Cutting Edge Length L .6339 Thickness S .2500 Inscribed Circle IC .6250 Hole Dia. D1 .2500

RE

IC

Grade Selection

A2, A3

Chipbreaker Selection B10 on Insert Grade Selection by Part Material

A10 on

S

80°

L

: 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

E12

C5 Applicable Internal Holders

Applicable External Holders

Nose Radius

Application Range

Shape

Sumitomo Cat. No.

ISO Cat. No.

RE

EMX

CNMG542EMX CNMG160608N-MX .0313 CNMG543EMX CNMG160612N-MX .0469 CNMG544EMX CNMG160616N-MX .0625

Q Q Q

QQQQQ QQ QQQQQ QQ QQQQQ QQ

FF FF FF

●●● ●●● ●●●

( a p )

.08 .16 .24

( f )

0

.008 .016 .024

-15°

ENZ

CNMG542ENZ CNMG160608N-UZ .0313

Q

QQQQQ QQ QQQQQ QQ QQQQQ QQ

FF FF FF

★★

( a p )

.08 .16 .24

CNMG543ENZ CNMG160612N-UZ .0469 ● ●★

●●● F Q ●★● F Q

CNMG544ENZ CNMG160616N-UZ .0625

★★

( f )

0

.008 .016 .024

C

EGZ

CNMG542EGZ CNMG160608N-GZ .0313 CNMG543EGZ CNMG160612N-GZ .0469 CNMG544EGZ CNMG160616N-GZ .0625

★★★ F Q

QQQQQ QQ QQQQQ QQ QQQQQ QQ

( a p )

.40

Q

★●●

★★★ F Q

.20

( f )

0

.020

.040

0 °

D

CNMM542ENP CNMM160608N-MP CNMM543ENP CNMM160612N-MP CNMM544ENP CNMM160616N-MP

QQQQQ QQ QQQQQ QQ QQQQQ QQ

Q ★★★ Q ★★★ Q ★★★

ENP

.0313

★★

★ ★ ★

.40 ( a p )

.0469 ★★★★ .0625 ★★★★

.20

( f )

0

0 °

R

.020

.040

EHG

CNMM543EHG CNMM160612N-HG .0469 ★●★★ FFF CNMM544EHG CNMM160616N-HG .0625 ★★★★ FFF

Q Q

QQQQQ QQ QQQQQ QQ

.40 ( a p )

.20

S

( f )

0

.020

.040

0 °

CNMM542EHP CNMM160608N-HP .0313 CNMM543EHP CNMM160612N-HP .0469 CNMM544EHP CNMM160616N-HP .0625

Q Q Q

QQQQQ QQ QQQQQ QQ QQQQQ QQ

EHP

★★ ★★ ★★

.40 ( a p )

.20

T

( f )

0

0 °

.020

.040

V

W

B27

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