Sumitomo General Catalog 2025-2026

Turning 55˚ Diamond Negative Inserts

Indexable Insert

RE

DN 55° Diamond Neg. With Hole DN ¢¢ 44 ˜ Dimensions (inch) Cutting Edge Length L .6102 Thickness S .2500 Inscribed Circle IC .5000 Hole Dia. D1 .2031

Information in "Shape" column

EFL

Name of Chipbreaker

.12

Application Range

.08

IC

Recommended Part Material

.04

Chipbreaker Rake Angle

0

.008 .016 .024

10 °

Feed Rate (f) (inch/rev)

L

S

55°

: 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

L53

SUMIBORON (CBN) Inserts

Coated Cermet

Coated Carbide

Carbide

Cermet

C10

E19

Applicable External Holders

Applicable Internal Holders

Nose Radius

Application Range

Shape

Sumitomo Cat. No.

ISO Cat. No.

RE

DNMG441EFB DNMG150604N-FB DNMG442EFB DNMG150608N-FB

Q Q

Q ★★★ Q ★★★

Q Q

EFB

( a p )

.0156 .0313

★ ★

.08

.04

( f )

0

.016 .008

27°

DNMG441EFA DNMG150604N-FA DNMG442EFA DNMG150608N-FA

QQ Q QQ Q

.0156 QQQQQQQQQQQQQQQQQQQQQQQ ★★★ .0313 QQQQQQQQQQQQQQQQQQQQQQQ ★ ★

EFA

( a p )

.08

.04

( f )

0

20°

.016 .008

C

DNMG440.5EFE DNMG150602N-FE DNMG441EFE DNMG150604N-FE DNMG442EFE DNMG150608N-FE DNMG443EFE DNMG150612N-FE DNMG441ESU DNMG150604N-SU DNMG442ESU DNMG150608N-SU DNMG443ESU DNMG150612N-SU

Q Q Q Q Q Q Q

Q ★★★ Q ★★★ Q ★★★ Q ★★★ Q ★★★ Q ★★★

Q Q Q Q Q Q

EFE

.0078 ★ ★★ .0156 ★★★★ .0313 ★★★★ .0469 ★★★★ .0156 ★★★ .0313 ★★★★ .0469 ★★★★

( a p )

★★ ★★ ★★ ★★

.08

.04

( f )

0

20°

.016 .008

ESU

( a p )

D

★ ★

.08

.04

QQQQQ QQ

( f )

0

13°

.016 .008

QQ Q QQ Q

DNMG441ESE DNMG150604N-SE DNMG442ESE DNMG150608N-SE

.0156 QQQQQQQQQQQQQQQQQQQQQQQ .0313 QQQQQQQQQQQQQQQQQQQQQQQ

ESE

R

★ ★

( a p )

0 .08 .16 .24

( f )

.008 .016 .024

DNMG441EEF DNMG150604N-EF DNMG442EEF DNMG150608N-EF DNMG443EEF DNMG150612N-EF

Q ★★★ Q ★★★ Q ★★★

QQQQQ QQ QQQQQ QQ QQQQQ QQ

EEF

F

( a p )

.0156 ★★★★ ★★★ .0313 ★★★★ ★★★ .0469 ★★★★ ★★★

S

.08

.04

( f )

0

20° 8°

.016 .008

DNMG441ENK DNMG150604N-SK DNMG442ENK DNMG150608N-SK

Q Q

QQQQQ QQ QQQQQ QQ

ENK

F F

.0156 .0313

( a p )

0 .08 .16 .24

T

( f )

.008 .016 .024

DNMG441ESX DNMG150604N-SX DNMG442ESX DNMG150608N-SX

QQ Q QQ Q

.0156 QQQQQQQQQQQQQQQQQQQQQQQ ★★ .0313 QQQQQQQQQQQQQQQQQQQQQQQ ★★

ESX

( a p )

V

.08

.04

( f )

0

.008

.016

DNMG441EEX DNMG150604N-EX DNMG442EEX DNMG150608N-EX DNMG443EEX DNMG150612N-EX

Q Q Q

QQQQQ QQ QQQQQ QQ QQQQQ QQ

EEX

★★★ F ★★★ F

.0156 .0313 .0469

★ ★ ★

W

0 .08 .04 .12 ( a p )

★★★

( f )

.008 .016

16°

B36

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