Sumitomo General Catalog 2025-2026

Turning Triangular Positive Inserts

Indexable Insert

RE

TC Triangular 7° Pos. With Hole TC ¢¢ 21.5 ˜ Dimensions (inch) Cutting Edge Length L .4331 Thickness S .0937 Inscribed Circle IC .2500 Hole Dia. D1 .1102

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)

S

L

60°

: 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

L75 SUMIDIA (PCD) Inserts

M18

SUMIBORON (CBN) Inserts

Coated Cermet

Coated Carbide

Carbide

Cermet

C39, D32 Applicable Internal Holders

E47

Applicable External Holders

Nose Radius

Application Range

Shape

Sumitomo Cat. No.

ISO Cat. No.

RE

(M)EFF (ap) .08

TCGT21.50MEFF TCGT110201MN-FF

< .0039 QQQQQQQQQQQQQQQ

★● ● QQQQ QQ ★● ● QQQQ QQ ★● ● QQQQ QQ

TCGT21.50.5MEFF TCGT110202MN-FF < .0078 QQQQQQQQQQQQQQQ TCGT21.51MEFF TCGT110204MN-FF < .0156 QQQQQQQQQQQQQQQ

.04

(f)

0

15°

.016 .008

TCMT21.51EFB TCMT110204N-FB TCMT21.52EFB TCMT110208N-FB

Q

★ Q ●★★●

Q

EFB

( a p )

.0156

.08

.0313 QQQQQQQQQQQQQQQQQQQQQQQ ●★★● QQ Q

.04

( f )

0

20°

.016 .008

C

TCMT21.51ELU TCMT110204N-LU TCMT21.52ELU TCMT110208N-LU

Q Q

Q ●★★ Q ★★★

Q Q

ELU

FF FF

●★ F ●★ F

( a p )

.0156 ●★★ .0313 ●★★

.08

.04

( f )

0

15°

.016 .008

TCMT21.51EFP TCMT21.52EFP

TCMT110204N-FP TCMT110208N-FP

.0156 QQQQQQQQQQQQQQQQQQQQQQQ .0313 QQQQQQQQQQQQQQQQQQQQQQQ

● QQ Q ★ QQ Q

EFP

( a p )

D

.08

.04

( f )

0

.016 .008

10°

TCGT110201R-FX TCGT110201L-FX

TCGT21.50RFX TCGT21.50LFX

.0039 QQQQQQQQQQQQQQQ .0039 QQQQQQQQQQQQQQQ .0078 QQQQQQQQQQQQQQQ .0078 QQQQQQQQQQQQQQQ .0039 QQQQQQQQQQQQQQQ .0039 QQQQQQQQQQQQQQQ .0078 QQQQQQQQQQQQQQQ .0078 QQQQQQQQQQQQQQQ

★★ ★★ QQQQ QQ ★★ ★★ QQQQ QQ ★★ ●★ QQQQ QQ ★★ ★ QQQQ QQ ★★ ★ QQQQ QQ ★★ ★ QQQQ QQ ★★ ★ QQQQ QQ ★★ ★★ QQQQ QQ

(R/L)FX

R

( a p )

.08

.04

TCGT21.50.5RFX TCGT110202R-FX TCGT21.50.5LFX TCGT110202L-FX

*1

( f )

0

15°

.016 .008

TCGT21.50RFY TCGT21.50LFY

TCGT110201R-FY TCGT110201L-FY

(R/L)FY

( a p )

S

.08

.04

TCGT21.50.5RFY TCGT110202R-FY TCGT21.50.5LFY TCGT110202L-FY TCMT21.51ELB TCMT110204N-LB TCMT21.52ELB TCMT110208N-LB

*1

( f )

0

15°

.016 .008

Q Q

Q ★★ Q ★★

Q Q

ELB

.0156 .0313

( a p )

★●● ●★★ ●●● ●★★

.08

T

.04

( f )

0

.016 .008

TCMT21.51ESU TCMT110204N-SU TCMT21.52ESU TCMT110208N-SU

Q ●●● FF Q ●●● FF

Q ●★

Q

ESU

.0156 ●●●● FFF ●●● F

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

●●

QQQQQ QQ

.0313 ●●●★ FF

●●● F ●●●

V

( f )

.008 .016 .024

TCGT21.50MESI TCGT21.50.5MESI TCGT21.51MESI

TCGT110201MN-SI < .0039 QQQQQQQQQQQQQQQ TCGT110202MN-SI < .0078 QQQQQQQQQQQQQQQ TCGT110204MN-SI < .0156 QQQQQQQQQQQQQQQ

★★ ★ QQQQ QQ ★★ ★ QQQQ QQ

(M)ESI

W

●●● ★★★★●

( f )

15°

.008 .016 .024

TCMT21.51ENK TCMT110204N-SK TCMT21.52ENK TCMT110208N-SK

Q Q

QQQQQ QQ QQQQQ QQ

ENK

.0156 ● ●● FF .0313 ● ●● FFF

( a p )

0 .08 .16 .24

( f )

.008 .016 .024

TCGT21.50EFM TCGT110201N-SC

.0039 QQQQQQQQQQQQQQQ

QQQQ QQ

(M)EFM

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

TCGT21.50MEFM TCGT110201MN-SC < .0039 QQQQQQQQQQQQQQQ

● ★★

TCGT21.50.5EFM TCGT110202N-SC

.0078 QQQQQQQQQQQQQQQ

QQQQ QQ

TCGT21.50.5MEFM TCGT110202MN-SC < .0078 QQQQQQQQQQQQQQQ

( f )

●● ★●

.008 .016 .024

*1: Photo shows left hand. Values for nose radius RE prefixed with "<" indicate negative tolerances.

B104

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