Sumitomo General Catalog 2025-2026

Turning 55˚ Diamond Negative Inserts

Indexable Insert

RE

DN 55° Diamond Neg. With Hole DN ¢¢ 33 ˜ Dimensions (inch) Cutting Edge Length L .4567 Thickness S .1875 Inscribed Circle IC .3750 Hole Dia. D1 .1500

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

L47

Coated Cermet

SUMIBORON (CBN) Inserts

Coated Carbide

Carbide

Cermet

C11

E17

Applicable External Holders

Applicable Internal Holders

Nose Radius

Application Range

Shape

Sumitomo Cat. No.

ISO Cat. No.

RE

DNGG331R DNGG110404R-UM DNGG331L DNGG110404L-UM DNGG332R DNGG110408R-UM DNGG332L DNGG110408L-UM DNMG332EGZ DNMG110408N-GZ DNMG333EGZ DNMG110412N-GZ

.0156 QQQQQQQQQQQQQQQQQQQQQQQ .0156 QQQQQQQQQQQQQQQQQQQQQQQ .0313 QQQQQQQQQQQQQQQQQQQQQQQ .0313 QQQQQQQQQQQQQQQQQQQQQQQ

QQ Q QQ Q QQ Q QQ Q

(R/L)M

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

★ ★ ★ ★

0 °

( f )

.008 .016 .024

( a p )

★●● F Q

QQQQQ QQ QQQQQ QQ

EGZ

.0313 .0469

0 .08 .16 .24

Q

★★★

( f )

0 °

.008 .016 .024

C

: 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

DN ¢¢ 43 ˜ Dimensions (inch)

D

Cutting Edge Length L .6102 Thickness S .1875 Inscribed Circle IC .5000 Hole Dia. D1 .2031

L47

M14

R

SUMIBORON (CBN) Inserts

SUMIDIA (PCD) Inserts

Coated Cermet

Coated Carbide

Carbide

Cermet

M27

B130

SUMIDIA Binderless Inserts

Ceramic Inserts

C10

E15

Applicable External Holders

Applicable Internal Holders

Nose Radius

Application Range

S

Shape

Sumitomo Cat. No.

ISO Cat. No.

RE

DNMG431EFB DNMG150404N-FB DNMG432EFB DNMG150408N-FB

Q Q

Q ★★★★

Q Q

EFB

.0156 .0313

★ ★

( a p )

Q ★★★

.08

T

.04

( f )

0

.016 .008

27°

DNMG431EFA DNMG150404N-FA DNMG432EFA DNMG150408N-FA

.0156 QQQQQQQQQQQQQQQQQQQQQQQ ●●★● QQ Q .0313 QQQQQQQQQQQQQQQQQQQQQQQ ●●★● QQ Q

EFA

( a p )

.08

V

.04

( f )

0

20°

.016 .008

DNMG431EFL DNMG150404N-FL DNMG432EFL DNMG150408N-FL DNMG433EFL DNMG150412N-FL DNMG430.5EFE DNMG150402N-FE DNMG431EFE DNMG150404N-FE DNMG432EFE DNMG150408N-FE DNMG433EFE DNMG150412N-FE DNMG430.5ELU DNMG150402N-LU DNMG431ELU DNMG150404N-LU DNMG432ELU DNMG150408N-LU DNMG433ELU DNMG150412N-LU DNMG430.5ESU DNMG150402N-SU DNMG431ESU DNMG150404N-SU DNMG432ESU DNMG150408N-SU DNMG433ESU DNMG150412N-SU

Q Q Q Q Q Q Q Q Q Q Q

Q ●★★ Q ●●★

Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q

EFL

F

( a p )

.0156 .0313 .0469

●● ●●

.08

FF

W

.04

Q

F

( f )

0

10°

.016 .008

Q ★★★

EFE

( a p )

.0078 ●★★● .0156 ●★★● .0313 ●●★● .0469 ●★★● F

★★ ★★ ★● ★★

.08

Q ★★★★

.04

Q ★★★ Q ★★★ Q ★★★

( f )

0

20°

.016 .008

ELU

( a p )

.0078 ★★★

★ ★ ★ ★

.08

Q ●★★● Q ●★★● Q ●★ ★

.0156 ●●●★ FF .0313 ●●●★ FFF .0469 ●★★★ FF

.04

( f )

0

10°

.016 .008

Q ●●●

Q ★★★

ESU

.0078

★★★

( a p )

.08

Q ●●● FF ★ Q ●●★● Q ●●● FF ★ Q ●●★●

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

.04

( f )

Q

Q ★★★●

0

●● F

13°

.016 .008

B32

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