Section L 25-26

SUMIBORON CBN Insert

Indexable Insert

V 35° Diamond

: 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

VNG ¢ 33 ˜ Coated Dimensions (inch) Inscribed Circle .3750 Hole Dia. Thickness .1875

Recommended Application

.1500

L

C29 to C31

E26

Applicable External Holders

Applicable Internal Holders

Coated CBN

Multi-Cornered Single-Use / Negative (With Hole)

Effective Cutting Edge Length LE

Nose Radius RE

No. of Cutting Edges

Cutting Edge Specification

Pcs/ Pack

Shape

Sumitomo Cat. No.

ISO Cat. No.

2NCVNGA331 2NCVNGA332

2NC-VNGA160404 2NC-VNGA160408

.0156 .1102

D D D 

D

Standard

1 2

.0313 .0787

D D D D D F F D

4NCVNGA330.5 4NC-VNGA160402

.0078 .1299



4NCVNGA331 4NCVNGA332 4NCVNGA333

4NC-VNGA160404 4NC-VNGA160408 4NC-VNGA160412

.0156 .1102

D D D D D F F D

 

1 4

Standard

.0313 .0787

D D D D D F F D

.0469 .0669

D

D



C

4NCVNGG331FV 4NC-VNGG160404N-FV 4NCVNGG332FV 4NC-VNGG160408N-FV

.0156 .1102

F 

 

.0313 .0787

Honing

1 4

F

Break Master

D

4NCVNGG331LV 4NC-VNGG160404N-LV 4NCVNGG332LV 4NC-VNGG160408N-LV

.0156 .1102

F  F 

 

S00535

.0313 .0787

1 4

Break Master

R

2NCVNGA331LT 2NC-VNGA160404LT 2NCVNGA332LT 2NC-VNGA160408LT 2NCVNGA333LT 2NC-VNGA160412LT

.0156 .1102

D

.0313 .0787

D

1 2

T00515

.0469 .0669



S

Sharper Edge

2NCVNGA332LS 2NC-VNGA160408LS

.0313 .0787

D



S01015

1 2

Sharper Edge

T

2NCVNGA332HS 2NC-VNGA160408HS

.0313 .0787

D D D D

BNC2020 Ž S02735 BNC200 Ž S01735 BNC300 Ž S01735

1 2

Sharper Edge

V

4NCVNGA331LS 4NC-VNGA160404LS

.0156 .1102

D

BNC100 Ž S01715 BNC160 Ž S01020 BNC200 Ž S01015

1 4

Sharper Edge

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)

L95

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