R Round Type Standard Cutting Edge Specification (Refer to L26 to L27 for details on symbols.)

BNX10 BNX20 BNX25 BN1000BN350BN2010 BNC100 BNC200 BNC500 BN500BN7000 BN7500 BNS800
BN2000BN2020 BNC160 BNC300BN700

Negative T01225 T02020

T01225 S01225 S01725 S01225S01225 S01225 S01225 S01215 T01215 T01215 T01215Q
PositiveT01235
: 1st Choice: 1st Choice: 1st Choice
Legend: Continuous Cut:Medium Cut:Interrupted Cut:
2nd Choice2nd Choice2nd Choice
RNGN˜˜˜˜˜˜Applicable holder ref. page, (Example)K cast iron
S exotic alloy

Applicable External Holders L99 H hardened steel

― ecommended Application sintered component I.C.: 9.525 to 12.7 Thickness: 3.18 to 4.76 Hole: CBN Dimensions L

(mm)

■Solid Type/Negative (Without Hole)

Appearance Cutting Edge Cat. No. Old Cat. No.

Specifi cation RNGN 090300 QQQQQQQ QQQ QQQ Q DDD 9.5 3.1 Standard Q

1

RNGN 090300LF RNGN 090300F 9.5 3.1 QQQQQQQ QQQ QQQ Q DDD

Sharp C 1 Edge Less Cutting force

RNGN 120300 QQQQQQQ QQQ QQQ Q DDD

12.7 3.1

StandardQD
1

RNGN 120300LF RNGN 120300F QQQQQQQ QQQ QQQ Q DDD

12.7 3.1 Sharp R 1 Edge

Less Cutting force

RNGN 120400 QQQQQQQ QQQ QQQ Q DDD

12.7 4.7

Standard Q

1 S

T

V

W

SUMIBORON Application Range Map

Ⓒ Gray Cast Iron Ⓓ Ductile Cast Iron Ⓔ General Sintered Alloy Ⓕ High Density Sintered Alloy

2,000 500 300 300 1,500 400 200 200

BN7000 BNC500

1,000 300 BN7500

BNS800 BN7000 BN7500

100 100