Sumitomo General Catalog 2025-2026

SUMIBORON CBN Insert

Indexable Insert

T Triangular TPGA33 ˜ Coated Dimensions (inch) Thickness .1875

: 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

Recommended Application

Inscribed Circle .3750 Hole Dia.

.1732

L

E46, E48, E51 to E52

Applicable Internal Holders

Coated CBN

Multi-Cornered Single-Use / 11° 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.

3NCTPGA331 3NCTPGA332

3NC-TPGW160404 3NC-TPGW160408

.0156 .0906

 D D F  

Standard

1 3

.0313 .0787

 D D F D



3NCTPGA331LS 3NC-TPGW160404LS 3NCTPGA332LS 3NC-TPGW160408LS

.0156 .0906

 

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 3

.0313 .0787

Sharper Edge

3NCTPGA331HS 3NC-TPGW160404HS 3NCTPGA332HS 3NC-TPGW160408HS

.0156 .0906

   

C

.0313 .0787

1 3

Strong Edge

D

R

S

T

V

W

CBN Application Range Map

(C) Gray Cast Iron

(D) Ductile Cast Iron

(E) General Powdered Metal (F) High-density Powdered Metal

(G) Titanium Alloy

2,000

500

300

300

300

1,500

400

200

200

200

BNC500

BN7000

1,000

300

BN7500

BN7500

NCB100

BNS800

BN7000

100

100

100

( m/min ) v c

200

500

BN7000

BN500

( m/min ) v c

BN7000

( m/min ) v c

( m/min ) v c

( m/min ) v c

0

0.05 0.10 0.15 0.20 Feed Rate f (mm/rev)

0 0.1 0.3 0.5

0 1.0 2.0 3.0 4.0

Depth of Cut a p ( mm ) Feed Rate f ( mm / rev )

Depth of Cut a p ( mm ) Feed Rate f ( mm / rev )

0 0.1

0.15 0.05 0.1 0.2 0.25 0.3 0.2 0.3 0.4 0.5

0 0.1

0.05 0.1 0.15 0.2 0.25 0.3 0.2 0.3 0.4 0.5

Depth of Cut a p (mm)

Depth of Cut a p (mm)

L87

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