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 T Triangular 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 TN■■1604●● Uncoated K Cast IronRecommendedSExotic Alloy Application H Hardened Steel Dimensions Inscribed Circle 9.525 Hole Dia. 3.81 Sintered Components (mm) Thickness 4.76 L Applicable External Holders C25 to C31, D16, D20 Applicable Internal Holders E55 to E57 Uncoated SUMIBORON Multi-Cornered Single-Use Type / Negative (With Hole) Shape Cutting EdgeSpecification Cat. No. No. ofPcs/PackCuttingEdges NoseRadiusCuttingEdgeLength 3NU-TNGM 160404N-LV 0.4 2.3 Q Q Q Q ● Q Q Q Q Q Q Q S00535 160408N-LV 1 3 0.8 2.0 Q Q Q Q ● Q Q Q Q Q Q Q Break Master 160412N-LV 1.2 2.0 Q Q Q Q ● Q Q Q Q Q Q Q 3NU-TNGA 160404LF 0.4 2.3 Q Q Q Q Q Q Q ● ●● Q SharpEdge 160408LF 1 3 0.8 2.0 Q Q Q Q Q Q Q ● ●● Q Low Cutting Force 160412LF 1.2 2.0 Q Q Q Q Q Q Q Q 3NU-TNGA 160404LE 0.4 2.3 Q Q Q Q Q Q Q Q ● Q C Honing 160408LE 1 3 0.8 2.0 Q Q Q Q Q Q Q Q ● Q Low Cutting Force 3NU-TNGA 160404LT 0.4 2.3 Q Q Q Q ● Q Q Q Q Q Q Q D T01215 160408LT 1 3 0.8 2.0 Q Q Q Q ● Q Q Q Q Q Q Q Sharper Edge Type 160412LT 1.2 2.0 Q Q Q Q ● Q Q Q Q Q Q Q 3NU-TNGA 160404LS 0.4 2.3 Q Q Q Q Q Q Q Q ● Q R S00715 160408LS 1 3 0.8 2.0 Q Q Q Q Q Q Q Q ● Q General-purpose Type for Continuous Cutting 3NU-TNGA 160404HT 0.4 2.3 Q Q Q Q Q ● Q Q Q Q Q S T01235 160408HT 1 3 0.8 2.0 Q Q Q Q Q ● Q Q Q Q Q Strong Edge Type 160412HT 1.2 2.0 Q Q Q Q Q ● Q Q Q Q Q BN2000→S01235 3NU-TNGA 160404HS 0.4 2.3 Q Q Q Q ● Q Q ● ●● Q T BN7000→S01225BN700→S01225 160408HS 1 3 0.8 2.0 Q Q Q Q ● Q Q ● ●● Q Strong Edge Type BN7500→S00525 160412HS 1.2 2.0 Q Q Q Q ● Q Q Q *Depth of cut for single-use types is 0.5mm or less. 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 L66