Sumitomo General Catalog 2025-2026

SUMIBORON CBN Insert D 55° Diamond

Indexable Insert

L28 , L29

Standard Edge Specification Details

BN1000 BN2000 BN250

BN7000 BN700 BN600

BN350 BN300 T01225 T01235

BNC2010 BNC2020

BNC100 BNC160

BNC200 BNC300

BNX10 BNX20 BNX25

BNC500 BN500

BN7500 BNS800 NCB100

T02020

Neg. Pos.

T01225 S01225 S01725 S01225

S01225 S01225 S01225 S01215 T01215 T01215 T01215

T01215

-

: 1st Recommended : 2nd Recommended

: 1st Recommended : 2nd Recommended

: 1st Recommended : 2nd Recommended

(Legend) Continuous Cutting

General Cutting

Interrupted Cutting

K Cast Iron S Exotic Alloy H Hardened Steel Sintered Components

DCG ¢ 21.5 ˜ Coated Dimensions (inch) Inscribed Circle .2500 Hole Dia. Thickness .0937

Recommended Application

.1102

L

C35 , D11 , D20 , D24 , D25 , D29, D30

E38 to E41

Applicable External Holders

Applicable Internal Holders

Coated CBN

Multi-Cornered One-Use / 7° Positive (With Hole)

Effective Cutting Edge Length LE

Nose Radius RE

No. of Cutting Edges

Pcs/ Pack

Cutting Edge Specification

Shape

Sumitomo Cat. No.

ISO Cat. No.

2NCDCGA21.50.5 2NC-DCGW070202

.0078 .1024

 D

D

2NCDCGA21.51 2NCDCGA21.52

2NC-DCGW070204 2NC-DCGW070208

Standard

1 2

.0156 .0984

 D  D F F D



.0313 .0827

 D D

2NCDCGA21.50.5WG ** 2NC-DCGW070202WG 2NCDCGA21.51WG ** 2NC-DCGW070204WG 2NCDCGA21.52WG ** 2NC-DCGW070208WG 2NCDCGT21.50.5FV 2NC-DCGT070202N-FV 2NCDCGT21.51FV 2NC-DCGT070204N-FV 2NCDCGT21.52FV 2NC-DCGT070208N-FV 2NCDCGA21.50.5LT 2NC-DCGW070202LT 2NCDCGA21.51LT 2NC-DCGW070204LT

.0078 .0984

D D

.0156 .0945

Standard

1 2

D D D D

.0313 .0787

D D D D

D

Wiper Insert

.0078 .0945

D D F D

C

1 2

.0156 .0945

Honing

 D  D F D

.0313 .0787

D D

F

Break Master

.0078 .1024

D

D

T00515

1 2

.0156 .0984

D

Sharper Edge

2NCDCGA21.50.5LS 2NC-DCGW070202LS 2NCDCGA21.51LS 2NC-DCGW070204LS

.0078 .1024

 

 

BNC100 Ž S01715 BNC160 Ž S01020 BNC200 Ž S01015 BNC300 Ž S00515

R

.0156 .0984

1 2

F

Sharper Edge

** Use a holder with a cutting edge angle of 93°

S

T

V

W

CBN Application Range Map

(A) Uncoated CBN

(B) Coated CBN

300

300

BNC100

BN1000

BNC160

BNC2010

200

200

BNC200

BN2000

BNX25

BNC2020

BNX20

120 100

100

BN350

( m/min ) v c

( m/min ) v c

BNC300

0

0

L56

Continuous

Interrupted

Heavy Interrupted

Continuous

Interrupted

Heavy Interrupted

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