SUMIBORON CBN Insert
Indexable Insert
R Round RNG Uncoated Dimensions (inch) Thickness .1250 to .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
Q
Inscribed Circle .3750 to .5000 Hole Dia.
L
L108
Applicable External Holders
Uncoated CBN
Solid / Negative (Without Hole)
Nose Radius RE
No. of Cutting Edges
Pcs/ Pack
Cutting Edge Specification
Sumitomo Cat. No.
ISO Cat. No.
Shape
RNG32
RNGN090300
.1875
D
Standard
1 Solid
RNG32B
RNGN090300-B
.1875
D D
Full Top
Standard
1
RNG42
RNGN120300
.2500
D
Standard
1 Solid
C
RNG43
RNGN120400
.2500
D
Standard
1 Solid
RNG43B
RNGN120400-B
.2500
F D
Full Top
D
Standard
1
R
: 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
RNG Coated Dimensions (inch) Thickness
Recommended Application
S
Q
Inscribed Circle .2500 to .3750 Hole Dia.
.1250
Coated CBN
T
Nose Radius RE .1250 .1875
No. of Cutting Edges
Pcs/ Pack
Cutting Edge Specification
Shape
Sumitomo Cat. No.
ISO Cat. No.
V
RNG22-S RNG32-S
RNGN060300-S RNGN090300-S
D
Standard
1 Solid
D
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
BN7000
BNC500
1,000
300
BN7500
BNS800
BN7500
BN7000
NCB100
100
100
100
( m/min ) v c
500
BN7000
200
BN500
( m/min ) v c
( m/min ) v c
( m/min ) v c
( m/min ) v c
BN7000
0
0 1.0 2.0 3.0 4.0
0.05 0.10 0.15 0.20 Feed Rate f (mm/rev)
0 0.1 0.3 0.5
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)
L61
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