SUMIBORONNeg.Pos. Cutting Speed vc (m/min) Cutting Speed vc (m/min) BNX10 BNX20 BNX25 BN1000 BN2000 BN350 BN500 BN7000 BN700 BN7500 BNS800 Binderless SUMIBORONNCB100 SUMIBORON Insert Indexable Insert S Square Type Standard Edge Specification Details L28, L29BNX10BNX20BNX25BN1000BN2000BN350BN2010 BN2020 BNC100 BNC160 BNC200 BNC300 BNC500BN500 BN7000 BN700 BN7500 BNS800 NCB100Neg.Pos.T01225S01225S01725S01225T01225T01235S01225S01225S01225S01215T01215T01215T01215T02020QT01215 (Legend) Continuous Cutting : 1st Recommended : 2nd Recommended General Cutting : 1st Recommended: 2nd RecommendedInterrupted Cutting: 1st Recommended: 2nd Recommended SPGN1203●● Uncoated K Cast IronRecommendedSExotic Alloy Application H Hardened Steel Dimensions Inscribed Circle 12.7 Hole Dia. Q Sintered Components (mm) Thickness 3.18 L Applicable External Holders C23, C24 Uncoated SUMIBORON 11° Positive Type (Without Hole) Shape Cutting EdgeSpecification Cat. No. No. ofPcs/PackCuttingEdges NoseRadiusCuttingEdgeLength SPGN 120308 0.8 4.8 Q Q Standard 120312 1 1 1.2 4.8 Q Q C D R S T V W   SUMIBORON Application Range Map (A)   Uncoated SUMIBORON (B)   Coated SUMIBORON 300 300 BNC100 BN1000 BNC2010 BNC160 200 BN2000 BNX25 200 BNC2020 BNC200 BNX20 120 100 100 BN350 BNC300 0 0 Continuous Interrupted Heavy Interrupted Continuous Interrupted Heavy Interrupted L64