SUMIBORON CBN Insert
Indexable Insert
Triangular
T
: 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
Recommended Application
Inscribed Circle .2500 Hole Dia.
.1100
Dimensions (inch)
Thickness
.0937
L
E48, E52
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 NU-TPGW110202 NUTPGX21.50.5 NU-TPGW110202
Q Q
D
«« ««
.0078 .0984
.0078 .0984 D
D
1 1
NUTPGA21.51
NU-TPGW110204
.0156 .0906 D
D
Standard
NUTPGX21.51S NU-TPGW110204 T-NUTPGA21.51 T-NU-TPGW110204 NUTPGA21.50.5LT NU-TPGW110202LT NUTPGA21.51LT NU-TPGW110204LT NUTPGA21.51S NU-TPGW110204LT NUTPGA21.51HS NU-TPGW110204HS
D
.0156 .0906
Q
«
10 1 .0156 .0906
Q Q Q Q
D
.0078 .0984
D
.0156 .0906
1 1
T01215
C
D
.0156 .0906
Sharper Edge
Q
D
.0156 .0906
1 1
S01235
D
Strong Edge
*Use NS (NSTPGA) for BNX25. *Depth of cut for single-use types is 0.0197 inch or less.
Multi-Cornered Single-Use / 11° Positive (With Hole)
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.
3NUTPGA21.51 3NU-TPGW110204 3NUTPGA21.52 3NU-TPGW110208
D F D Q D D Q
S
.0156 .0906
Standard
1 3
.0313 .0787
3NUTPGA21.51LF 3NU-TPGW110204LF
D Q
«
.0156 .0906
T
Sharp Edge
1 3
Low Cutting Force
3NUTPGA21.51LE 3NU-TPGW110204LE
D Q
.0156 .0906
V
Honing
1 3
Low Cutting Force
3NUTPGA21.51LS 3NU-TPGW110204LS
D Q
.0156 .0906
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
BNC500
200
BN7000
1,000
300
BN7500
( m/min ) v c
( m/min ) v c
( m/min ) v c
( m/min ) v c
BN7500
( m/min ) v c
BNS800
BN7000
NCB100
100
100
100
BN7000
200
500
BN500
BN7000
0
0.05 0.10 0.15 0.20 Feed Rate f (mm/rev)
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 0.3 0.5
0 1.0 2.0 3.0 4.0
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
p (mm)
Depth of Cut a
Depth of Cut a
p (mm)
L79
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