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 ¢ 32.5 ˜ Coated Dimensions (inch) Inscribed Circle .3750 Hole Dia. Thickness .1563

Recommended Application

.1732

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.

2NCDCGA32.50.5LS 2NC-DCGW11T302LS 2NCDCGA32.51LS 2NC-DCGW11T304LS 2NCDCGA32.52LS 2NC-DCGW11T308LS 2NCDCGA32.51HS 2NC-DCGW11T304HS 2NCDCGA32.52HS 2NC-DCGW11T308HS

.0078 .1063 .0156 .0984 .0313 .0827 .0156 .0984 .0313 .0827

F 

BNC100 Ž S01715 BNC160 Ž S01020 BNC200 Ž S01015 BNC300 Ž S00515 BNC2010 Ž S01730 BNC2020 Ž S02735 BNC160 Ž S01730 BNC200 Ž S01735 BNC300 Ž S01735 BNC500 Ž S01225



1 2

  F F D   F F D

Sharper Edge

D

1 2

Strong Edge

C

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

D

R

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

L60

Continuous

Interrupted

Heavy Interrupted

Continuous

Interrupted

Heavy Interrupted

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