SUMIBORON CBN Insert
Indexable Insert
T Triangular
: 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
TPGA21.5 Uncoated Dimensions (inch) Inscribed Circle .2500 Hole Dia. Thickness .0937
Recommended Application
.1100
L
E47 to E48
Applicable Internal Holders
Uncoated CBN
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.
NUTPGA21.50.5 NUTPGX21.50.5 NUTPGA21.51 NUTPGX21.51 NUTPGX21.51S T-NUTPGA21.51 NUTPGA21.50.5LT NUTPGA21.51LT
NU-TPGW110202 NU-TPGW110202 NU-TPGW110204 NU-TPGW110204 NU-TPGW110204 T-NU-TPGW110204 NU-TPGW110202LT NU-TPGW110204LT
.0078 .0984
D
.0078 .0984
F
.0156 .0906
1 1
D
Standard
.0156 .0906
F
.0156 .0906
F
10 1 .0156 .0906
.0078 .0984
D
C
T01215
1 1
.0156 .0906
D
Sharper Edge
NU-TPGW110204HS
NUTPGA21.51HS
.0156 .0906
D
D
1 1
S01235
Strong Edge
Multi-Cornered Single-Use / 11° Positive (With Hole) *Use NS (NSTPGA) for BNX25. *Depth of cut for single-use types is 0.0197 inch or less.
R
Effective Cutting Edge Length LE
Nose Radius RE
No. of Cutting Edges
Pcs/ Pack
Cutting Edge Specification
Shape
Sumitomo Cat. No.
ISO Cat. No.
S
3NUTPGA21.51 3NUTPGA21.52
3NU-TPGW110204 3NU-TPGW110208
.0156 .0906
D D F
.0313 .0787
1 3
Standard
D D F
3NUTPGA21.51LF
3NU-TPGW110204LF
.0156 .0906
D F
T
Sharp Edge
1 3
Low Cutting Force
3NUTPGA21.51LE
3NU-TPGW110204LE
.0156 .0906
F
V
Honing
1 3
Low Cutting Force
3NUTPGA21.51LS
3NU-TPGW110204LS
.0156 .0906
D F
W
S00715
1 3
General-purpose for Continuous Cutting
*Use 3NS (3NSTPGA) for BNX25. *Depth of cut for single-use types is 0.0197 inch or less.
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)
L79
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