No. of Cutting Edges BNC2010 BNC2020 BNC160 BNC200 BNC300 Nose Radius CBN Cutting Edge Length Inscribed Circle Thickness Bore Dia. No. of Cutting Edges BNC2010 BNC2020 BNC160 BNC200 BNC300 Nose Radius CBN Cutting Edge Length Inscribed Circle Thickness Bore Dia. SUMIBORON SUMIBORON Inserts & Special Holders for High Efficiency Machining Single-Sided Insert Type ( SUMIBORON) Dimensions (mm) Double-Sided Insert Type ( SUMIBORON) Dimensions (mm) Appearance Cat. No. Appearance Cat. No. 2NC-CNGA 120416 2 ● ● ● ● ● 1.6 3.3 12.7 4.76 5.16 4NC-CNGA 120416 4 ● ● ● ● ● 1.6 3.3 12.7 4.76 5.16 2NC-CNGA 120420 2 ● ● ● ● ● 2.0 3.2 12.7 4.76 5.16 4NC-CNGA 120420 4 ● ● ● ● ● 2.0 3.2 12.7 4.76 5.16 2NC-CNGA 120424 2 ● ● ● ● ● 2.4 3.1 12.7 4.76 5.16 4NC-CNGA 120424 4 ● ● ● ● ● 2.4 3.1 12.7 4.76 5.16 2NC-DNGA 150416 2 ● ● ● ● ● 1.6 3.4 12.7 4.76 5.16 4NC-DNGA 150416 4 ● ● ● ● ● 1.6 3.4 12.7 4.76 5.16 2NC-DNGA 150420 2 ● ● ● ● ● 2.0 3.0 12.7 4.76 5.16 4NC-DNGA 150420 4 ● ● ● ● ● 2.0 3.0 12.7 4.76 5.16 2NC-DNGA 150424 2 ● ● ● ● ● 2.4 2.7 12.7 4.76 5.16 4NC-DNGA 150424 4 ● ● ● ● ● 2.4 2.7 12.7 4.76 5.16 3NC-TNGA 160416 3 ● ● ● ● ● 1.6 3.3 9.525 4.76 3.813NC-TNGA 1604203● ● ● ● ● 2.0 3.0 9.525 4.76 3.81 6NC-TNGA 1604166NC-TNGA 1604206 ● ● ● ● ● 1.6 3.3 9.525 4.76 3.816● ● ● ● ● 2.0 3.0 9.525 4.76 3.81 L 3NC-TNGA 160424 3 ● ● ● ● ● 2.4 2.7 9.525 4.76 3.81 6NC-TNGA 160424 6 ● ● ● ● ● 2.4 2.7 9.525 4.76 3.81 Application Example (For Automotive Components) Nose radius of 2.4mm achieves 2x greater tool life Nose radius of 1.6mm achieves 1.5x greater tool life (compared to nose radius of 0.8mm) (compared to nose radius of 0.8mm) Competitor's CBN Competitor's CBN No. of Workpieces (pcs) No. of Workpieces (pcs) Work Material: Carburised Steel (60HRC) Work Material: Carburised Steel (60HRC) Cutting Conditions vc = 120m/min, f = 0.35mm/rev, ap = 0.2mm Cutting Conditions vc = 100m/min, f = 0.15mm/rev, ap = 0.1mm vc = 120m/min, f = 0.20mm/rev, ap = 0.2mm L107