Sumitomo General Catalog 2025-2026

Turning 55˚ Diamond Positive Inserts

Indexable Insert

DC 55° Diamond 7° Pos. With Hole DC ¢¢ 21.5 ˜ Dimensions (inch) Cutting Edge Length L .3031 Thickness S .0937 Inscribed Circle IC .2500 Hole Dia. D1 .1102

Information in "Shape" column

RE

EFL

Name of Chipbreaker

.12

Application Range

.08

Recommended Part Material

.04

IC

Chipbreaker Rake Angle

0

.008 .016 .024

10 °

S

Feed Rate (f) (inch/rev)

L

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

L55

M14

M27

SUMIBORON (CBN) Inserts

SUMIDIA (PCD) Inserts

SUMIDIA Binderless Inserts

Coated Cermet

Coated Carbide

Carbide

Cermet

C35, D24, D29

E38

Applicable External Holders

Applicable Internal Holders

Nose Radius

Application Range

Shape

Sumitomo Cat. No.

ISO Cat. No.

RE

DCGT21.50MEFF DCGT070201MN-FF .0039 QQQQQQQQQQQQQQQ DCGT21.50.5MEFF DCGT070202MN-FF .0078 QQQQQQQQQQQQQQQ DCGT21.51MEFF DCGT070204MN-FF .0156 QQQQQQQQQQQQQQQ

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

(M)EFF

(ap)

.08

.04

(f)

0

15°

.008 .016

DCMT21.50.5EFB DCMT070202N-FB DCMT21.51EFB DCMT070204N-FB DCMT21.52EFB DCMT070208N-FB DCMT21.50.5ELU DCMT070202N-LU DCMT21.51ELU DCMT070204N-LU

.0078 QQQQQQQQQQQQQQQQQQQQQQQ ★★★● QQ Q

EFB

( a p )

.08

Q

★ Q ★★★★

Q

.0156

.04

.0313 QQQQQQQQQQQQQQQQQQQQQQQ ★★★● QQ Q

( f )

0

20°

.016 .008

C

Q Q

★ Q ★★★ ● Q ●●★

Q Q

ELU

F

★★ F ●● F

( a p )

.0078 ★★★ .0156 ●●●

.08

FF

.04

( f )

0

15°

.016 .008

DCMT21.50.5EFP DCMT070202N-FP DCMT21.51EFP DCMT070204N-FP

.0078 QQQQQQQQQQQQQQQQQQQQQQQ .0156 QQQQQQQQQQQQQQQQQQQQQQQ

● QQ Q ● QQ Q

EFP

( a p )

D

.08

.04

( f )

0

10°

.016 .008

DCGT21.5.001EFC DCGT0702003N-FC .0012 QQQQQQQQQQQQQQQ DCGT21.50MEFC DCGT070201MN-FC < .0039 QQQQQQQQQQQQQQQ

●● QQQQ QQ

(M)EFC

R

●★● ● ★●

( a p )

DCGT21.50EFC DCGT070201N-FC

.0039 QQQQQQQQQQQQQQQ

.08

DCGT21.50.5MEFC DCGT070202MN-FC < .0078 QQQQQQQQQQQQQQQ

●★● ★● ★●

.04

DCGT21.50.5EFC DCGT070202N-FC

.0078 QQQQQQQQQQQQQQQQQQQQQQQ

● QQ Q

S

( f )

0

.016 .008

DCGT21.51MEFC DCGT070204MN-FC < .0156 QQQQQQQQQQQQQQQ

●●● ★ ★●

DCGT21.51EFC DCGT070204N-FC

.0156 QQQQQQQQQQQQQQQ

QQQQ QQ

15°

DCGT21.5.001RFX DCGT0702003R-FX .0012 QQQQQQQQQQQQQQQ

(R/L)FX

★● ●★ ★★ ★● ●★ ★★ ★● ★●★ ★★ ★● ●★★ ★★ ★● ●★★ ★● ★● ●●★ ★★

DCGT21.5.001LFX DCGT0702003L-FX DCGT21.50RFX DCGT070201R-FX DCGT21.50LFX DCGT070201L-FX DCGT21.50.5RFX DCGT070202R-FX DCGT21.50.5LFX DCGT070202L-FX DCET21.5.001RFX DCET0702003R-FX DCET21.5.001LFX DCET0702003L-FX DCET21.5.003RFX DCET0702008R-FX DCET21.5.003LFX DCET0702008L-FX DCET21.50RFX DCET070201R-FX DCET21.50LFX DCET070201L-FX DCET21.5.007RFX DCET0702018R-FX DCET21.5.007LFX DCET0702018L-FX DCET21.50.5RFX DCET070204R-FX DCET21.50.5LFX DCET070204L-FX

.0012 QQQQQQQQQQQQQQQ .0039 QQQQQQQQQQQQQQQ .0039 QQQQQQQQQQQQQQQ .0078 QQQQQQQQQQQQQQQ .0078 QQQQQQQQQQQQQQQ .0012 QQQQQQQQQQQQQQQ .0012 QQQQQQQQQQQQQQQ .0031 QQQQQQQQQQQQQQQ .0031 QQQQQQQQQQQQQQQ .0039 QQQQQQQQQQQQQQQ .0039 QQQQQQQQQQQQQQQ .0071 QQQQQQQQQQQQQQQ .0071 QQQQQQQQQQQQQQQ .0078 QQQQQQQQQQQQQQQ .0078 QQQQQQQQQQQQQQQ

( a p )

.08

T

.04

( f )

0

.016 .008

15°

★ QQQQ QQ ★ QQQQ QQ ★ QQQQ QQ ★ QQQQ QQ ★ QQQQ QQ ★ QQQQ QQ ★ QQQQ QQ ★ QQQQ QQ ★ QQQQ QQ ★ QQQQ QQ

(R/L)FX

V

( a p )

.08

W

.04

( f )

0

.016 .008

15°

Values for nose radius RE prefixed with "<" indicate negative tolerances.

B82

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