Sumitomo General Catalog 2025-2026

Turning Triangular Negative Inserts TN Triangular Neg. With Hole 60°

Indexable Insert

RE

Information in "Shape" column

EFL

Name of Chipbreaker

.12

IC

Application Range

.08

Recommended Part Material

.04

Chipbreaker Rake Angle

0

.008 .016 .024

10 °

Feed Rate (f) (inch/rev)

L

s

: 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

TN ¢¢ 66 ˜ Dimensions (inch)

Cutting Edge Length L 1.2992 Thickness S .3750 Inscribed Circle IC .7500 Hole Dia. D1 .3122

B

Coated Cermet

Coated Carbide

Carbide

Cermet

C21

Applicable External Holders

Nose Radius

Application Range

Shape

Sumitomo Cat. No.

ISO Cat. No.

RE

EEM

TNMG666EEM TNMG330924N-EM .0938 ● ★●

QQQQQ QQ

Q ★★●

F

( a p )

●●

0 .08 .16 .24

( f )

0 °

.008 .016 .024

ENG

TNMG666ENG TNMG330924N-UG .0938

Q

QQQQQ QQ

FF

●●

( a p )

.08 .16 .24

( f )

0

.008 .016 .024

ENZ

TNMG666ENZ TNMG330924N-UZ

Q

QQQQQ QQ

FF

C

.0938

●●

( a p )

.08 .16 .24

( f )

0

.008 .016 .024

D

R

S

T

V

W

B60

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