SUMIBORONNeg.Pos. Cutting Speed vc (m/min) Cutting Speed vc (m/min) BNC2010 BNC2020 BNC300 BNC100 BNC160 BNC200 BNC500 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 TNG■1604●● Coated 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 Coated SUMIBORON Multi-Cornered Single-Use Type / Negative (With Hole) Shape Cutting EdgeSpecification Cat. No. No. ofPcs/PackCuttingEdges NoseRadiusCuttingEdgeLength 3NC-TNGA 160404 0.4 2.3 ●● ● 160408 0.8 2.0 ●● ● 160412 1.2 2.0 ●● Standard 1 3 160416* 1.6 3.3 ●●● ●● 160420* 2.0 3.0 ●●● ●● 160424* 2.4 2.7 ●●● ●● 6NC-TNGA 160402 0.2 2.4 ●● C 160404 0.4 2.3 ●●●●●●● 160408 0.8 2.0 ●●●●●●● Standard 160412 1 6 1.2 2.0 ●●● ●●● D 160416* 1.6 3.3 ●●● ●● 160420* 2.0 3.0 ●●● ●● 160424* 2.4 2.7 ●●● ●● 6NC-TNGG 160404N-FV 0.4 2.3 ● ● Q Q ● ● Q R Honing 160408N-FV 1 6 0.8 2.0 ● ● Q Q ● ● Q Break Master 160412N-FV 1.2 2.0 ● ● Q Q ● ● Q 6NC-TNGG 160404N-LV 0.4 2.3 ● ● Q Q ● ● Q S S00535 160408N-LV 1 6 0.8 2.0 ● ● Q Q ● ● Q Break Master 160412N-LV 1.2 2.0 ● ● Q Q ● ● Q 6NC-TNGG 160404N-SV 0.4 2.3 Q Q Q S01235 160408N-SV 1 6 0.8 2.0 ● ● Q Q ● ● Q T Break Master 160412N-SV 1.2 2.0 ● ● Q Q ● ● Q 3NC-TNGA 160404LE 0.4 2.3 ● Q Q Q Q Q Q Honing 160408LE 1 3 0.8 2.0 ● Q Q Q Q Q Q V Low Cutting Force 160412LE 1.2 2.0 ● Q Q Q Q Q Q 3NC-TNGA 160402LT 0.2 2.4 Q ● Q Q Q Q Q 160404LT 0.4 2.3 Q ● Q Q Q Q Q T00515 1 3 W 160408LT 0.8 2.0 Q ● Q Q Q Q Q Sharper Edge Type 160412LT 1.2 2.0 Q ● Q Q Q Q Q * For use with SUMIBORON holders for the high-efficiency machining shown on page L105.   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 L68