SUMIBORON Inserts CBN Insert Edge Specification CBN Insert Edge Treatment All SUMIBORON inserts are enhanced with the optimum cutting edge preparation for the various grades and geometries (shown on the right). This is to avoid cutting edge fracture caused by the heavy loads generated during the machining of high-hardness materials such as hardened steel. As the pioneer of CBN tools, SUMIBORON's vast selection of grades and edge treatment combinations makes Sumitomo the world leader for hardened steel machining. ■ CBN Insert Edge Specification Overview
Section A-A'
Close-up of cutting edge
Rake Face
Negative Land
A
Rake Face
Negative land width W
α Negative land angle
CBN
CBN Layer
A'
Honing
Cutting Edge
Flank
Flank
Nose Radius
L
L
E
H
Negative/ Positive
Standard
Low-resistance
/ High-Efficiency
Strong Edge
Part Material
Series
Grade
α
α
α
Edge Specification Identification Code
Edge Specification Identification Code
Edge Specification Identification Code
W Honing Notation
W Honing Notation
W Honing
Q Q QQQQ Q QQQ
BNX10 BNX20 BNX25 BN1000 BN2000
Negative/Positive T01225 Negative/Positive S01225
25° 0.12 No
Q Q Q Q Q
LT
T01215 *
25° 0.12 Yes
15° 0.12 No
Q Q QQQQ Q QQQ Q Q QQQQ Q QQQ
Negative/Positive S01725
25° 0.17 Yes
Hardened Steel
Negative/Positive S01225
25° 0.12 Yes
LT
HS HT
Negative/Positive S01225 Negative T01225
T01215
S01235
25° 0.12 Yes
15° 0.12 No
35° 0.12 Yes
T01235
25° 0.12 No
35° 0.12 No
Q Q Q Q Q
BN350
Q Q Q Q Q
Positive T01235
35° 0.12 No
Q Q QQQQ Q QQQ
BN500 BN700 BN7000
Negative/Positive T01215 Negative/Positive T01215
15° 0.12 No
LF LF LF LE LS LF LE LT ES LS LS LS LS
HS HS
S01225
15° 0.12 No
Sharp Edge 0°
0 No
25° 0.12 Yes
Cast Iron Powdered Metal Exotic Alloy
Negative/Positive T01215
S01225
15° 0.12 No
25° 0.12 Yes
Sharp Edge 0°
0 No
Sharp Edge 0°
0 No
Negative/ Positive
BN7500
HS
T01215
S00525
15° 0.12 No
25° 0.05 Yes
Sharp Edge 0°
0 Yes
S00715
15° 0.07 Yes
Q Q Q Q Q
BNS800
Negative T02020
20° 0.20 No
Sharp Edge 0°
0 No
BNC2010 Negative/Positive S01225
HS
S01730
25° 0.12 Yes
30° 0.17 Yes
Sharp Edge 0°
0 Yes
T00515
15° 0.05 No
Negative/ Positive
BNC2020
HS
S01225
S02735
25° 0.12 Yes
35° 0.27 Yes
S00535 S01715
35° 0.05 Yes
Hardened Steel
Q Q Q Q Q
BNC100 BNC160 BNC200 BNC300 BNC500
Negative/Positive S01225
25° 0.12 Yes
15° 0.17 Yes
HS HS HS HS
Negative/Positive S01225
S01020
S01730
25° 0.12 Yes
20° 0.10 Yes
30° 0.17 Yes
Negative/Positive S01225 Negative/Positive S01225
S01015 S00515
S01735 S01735
25° 0.12 Yes
15° 0.10 Yes
35° 0.17 Yes
25° 0.12 Yes
35° 0.17 Yes
15° 0.05 Yes
Q Q Q Q Q
Negative/Positive S01215
S01225
Cast Iron
15° 0.12 Yes
25° 0.12 Yes
Cast Iron/Exotic Alloy Cemented Carbides and Hard Brittle Materials
Binderless CBN
Q Q QQQQ Q QQQ
NCB100
Negative/Positive T01215
15° 0.12 No
*BNX20 inserts with an inscribed circle of less than ø4.76 will have an identification code of T00715.
■ Insert Edge Specification with Wiper / Chipbreaker
■ Edge Specification Identification Code Edge Treatment Notation
Other Types
Work Material
Series
Grade
α
Notation Edge Specification Identification Code
W Honing Type
Standard Cutting Edge
No
WG WH
S01215 S01215
15° 0.12 Yes
Wiper
F Sharp Edge E Honing T Negative Land S Negative Land + Honing
Low Resistance
L
15° 0.12 Yes
Wiper
Hardened Steel
BN2000
Q
N-FV
High Efficiency
+
0°
0 Yes With Chipbreaker
E
N-LV S00535
35° 0.05 Yes With Chipbreaker
Strong Edge
H
W
T02020
20° 0.20 No
Wiper
Cast Iron Exotic Alloy
BNS800
WG/WH/W Wiper N-FV/N-LV/ N-SV
LFW Sharp Edge 0°
0 No Wiper Sharp Edge
WG WH
With Chipbreaker
S01215 S01215
15° 0.12 Yes
Wiper
15° 0.12 Yes
Wiper
BNC2010 BNC2020
Q
● Edge specification identification code
N-FV
0°
0 Yes With Chipbreaker
N-LV S00535 N-SV S01235
35° 0.05 Yes With Chipbreaker
S 0 1 2 2 5
35° 0.12 Yes With Chipbreaker
Rake Face Negative land width W
Negative land width Negative land angle
BNC100 W
S01715
15° 0.17 Yes
Wiper
Hardened Steel
α Negative land angle
CBN
Cutting Edge Shape T S
: Negative land : Negative land + honing
WG WH
S01215 S01215 S01215
15° 0.12 Yes
Wiper
Honing
Flank
15° 0.12 Yes
Wiper
Ex.: S01225 → 25°/0.12mm Negative Land with Honing
W
15° 0.12 Yes
Wiper
BNC160 BNC200
Q
N-FV
0°
0 Yes With Chipbreaker
N-LV S00535 N-SV S01235
35° 0.05 Yes With Chipbreaker
35° 0.12 Yes With Chipbreaker
BNC500 W
S01215
Cast Iron
15° 0.12 Yes
Wiper
L28
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