Cutting Speed v c (m/min) Cutting Speed v c (m/min) (m/min)Cutting Speed v Cutting Speed v c (m/min) BNX10 BNX20 BNX25 BN1000 BN2000Cutting Speed v c (m/min) BN350 BN500 BN7000 BN700 BN7500 BNS800 Binderless SUMIBORONNCB100 Pos.Neg.SUMIBORON SUMIBORON Insert Indexable Insert C 80° Diamond Type (Legend) Continuous Cutting : 1st Recommended : 2nd Recommended General Cutting :: 1st Recommended 2nd Recommended Interrupted Cutting : 1st Recommended: 2nd Recommended CN■■1204●● Uncoated K Cast IronRecommendedSExotic Alloy Application H Hardened Steel Dimensions Inscribed Circle 12.7 Hole Dia. 5.16 Sintered Components (mm) Thickness 4.76 Applicable External Holders C8, C9 Applicable Internal Holders E17 to E19 Uncoated SUMIBORON L Multi-Cornered Single-Use Type / Negative (With Hole) Shape Cutting EdgeSpecification Cat. No. No. ofPcs/PackCuttingEdgesNoseRadius CuttingEdgeLength 2NU-CNGA 120404WG 0.4 2.4 Q Q Q ● Q Q Q Q Q S01215 120408WG 1 2 0.8 2.4 Q Q Q ● Q Q Q Q Q 120412WG 1.2 2.3 Q Q Q ● Q Q Q Q Q 2NU-CNGA 120404WH 0.4 2.4 Q Q Q ● Q Q Q Q Q S01215 120408WH 1 2 0.8 2.3 Q Q Q ● Q Q Q Q Q Wiper Insert 120412WH 1.2 2.2 Q Q Q ● Q Q Q Q Q 2NU-CNGM 120404N-LV 0.4 2.5 Q Q Q Q ● Q Q Q Q Q Q Q C S00535 120408N-LV 1 2 0.8 2.4 Q Q Q Q ● Q Q Q Q Q Q Q Break Master 120412N-LV 1.2 2.3 Q Q Q Q ● Q Q Q Q Q Q Q 2NU-CNGA 120404LF 0.4 2.5 Q Q Q Q Q Q Q ●●● Q SharpEdge 120408LF 1 2 0.8 2.4 Q Q Q Q Q Q Q ●●● Q D Low Cutting Force 120412LF 1.2 2.3 Q Q Q Q Q Q Q Q 2NU-CNGA 120404LE 0.4 2.5 Q Q Q Q Q Q Q Q ● Q Honing 120408LE 1 2 0.8 2.4 Q Q Q Q Q Q Q Q ● Q R Low Cutting Force 2NU-CNGA 120404LT 0.4 2.5 Q Q Q Q ● Q Q Q Q T01215 120408LT 1 2 0.8 2.4 Q Q Q Q ● Q Q Q Q S Sharper Edge Type 120412LT 1.2 2.3 Q Q Q Q ● Q Q Q Q 2NU-CNGA 120404LS 0.4 2.5 Q Q Q Q Q Q Q Q ● Q S00715 120408LS 1 2 0.8 2.4 Q Q Q Q Q Q Q Q ● Q T General-purpose Type for Continuous Cutting 2NU-CNGA 120404HT 0.4 2.5 Q Q Q Q Q ● Q Q Q Q Q T01235 120408HT 1 2 0.8 2.4 Q Q Q Q Q ● Q Q Q Q Q Strong Edge Type 120412HT 1.2 2.3 Q Q Q Q Q ● Q Q Q Q Q V *Depth of cut for single-use types is 0.5mm or less. W SUMIBORON Application Range Map (C) Gray Cast Iron (D) Ductile Cast Iron (E) General Powdered Metal (F) High-density Powdered Metal (G) Titanium Alloy 2,000 500 300 300 300 1,500 400 BN7000 BNC500 200 200 200 1,000 300 BN7500 BNS800500 200 100 BN7000 BN7500100 BN7000 100 NCB100 BN500 BN7000 0 1.0 2.0 3.0 4.0 0 0.1 0.3 0.5 Depth of Cut ap(mm) 0 0.1 0.2 0.3 0.4 0.5 Depth of Cut ap(mm) 0 0.1 0.2 0.3 0.4 0.5 0 0.05 0.10 0.15 0.20 Depth of Cut ap (mm) Depth of Cut ap (mm) Feed Rate f(mm/rev) 0.05 0.1 0.15 0.2 0.25 0.3 Feed Rate f(mm/rev) 0.05 0.1 0.15 0.2 0.25 0.3 Feed Rate f (mm/rev) L31 c