Insert GradesSteelStainlessSteelCast IronExotic AlloyHardene dNon-FerrousSteelMetalFor SmallLathes ByDepth of Cut ap (mm) Application Depth of Cut ap (mm) Depth of Cut ap (mm) General Steel Stainless Steel Cast Iron Heat-Resistant Alloy Hardened Steel Non-Ferrous Metal Chipbreaker and Grade Selection Guide For Small Lathes Grades Work Material Application Range P M K S H N Insert Grade High-precision Finishing to LightCutting Medium Cutting A ACZ150 G G SAC5015SSGSG Coated Carbide(PVD) AC5025S S G S G AC530U G G S S S AC1030U G G S S S Uncoated Cermet T1000A G S G S Coated Cermet T1500A/T1500Z G S S S BL130 S S S S Carbide H1 S S S G EH510 S S S G S CBN BN1000/BN2000 G (SUMIBORON) BN7000 G S PCD(SUMIDIA) DA1000 G G 1st Recommendation S 2nd Recommendation Chipbreakers ● M Class Finishing to Light Cutting ● G Class Ground Type ● M Class Molded Type 4.0 4.0 4.0 SI Type SU Type 2.0 FK Type 2.0 SD Type 2.0 FX Type SDW Type SC Type FP Type LUW Type W Type FYS Type FC Type LU Type FY Type 0 0.2 0.4 0 0.2 0.4 0 0.2 0.4 Feed Rate f (mm/rev) Feed Rate f (mm/rev) Feed Rate f (mm/rev) Recommended Cutting Conditions (Red text: 1st recommendation, blue text: 2nd recommendation) Work Material P Free-Cutting Steel P Carbon Steel M Stainless Steel S Heat-Resistant Alloy H Hardened Steel N Aluminum Alloy N Brass Tool Grade vc (m/min) f (mm/rev) vc (m/min) f (mm/rev) vc (m/min) f (mm/rev) vc (m/min) f (mm/rev) vc (m/min) f (mm/rev) vc (m/min) f (mm/rev) vc (m/min) f (mm/rev) ACZ150 50 to 200 0.02 to 0.10 50 to 150 0.01 to 0.08 50 to 150 0.01 to 0.05 70 to 300 0.05 to 0.20 70 to 300 0.05 to 0.20 AC5015S 50 to 200 0.02 to 0.15 50 to 200 0.02 to 0.10 50 to 200 0.02 to 0.10 30 to 100 0.02 to 0.10 70 to 300 0.05 to 0.20 AC5025S 50 to 200 0.02 to 0.15 50 to 200 0.02 to 0.10 50 to 200 0.02 to 0.10 30 to 100 0.02 to 0.10 70 to 300 0.05 to 0.20 AC530U 50 to 200 0.02 to 0.15 50 to 200 0.02 to 0.10 50 to 200 0.02 to 0.10 70 to 300 0.05 to 0.20 AC1030U 50 to 150 0.02 to 0.15 50 to 150 0.02 to 0.10 50 to 150 0.02 to 0.10 70 to 300 0.05 to 0.20 T1000A 50 to 200 0.02 to 0.15 50 to 200 0.02 to 0.10 50 to 150 0.02 to 0.10 70 to 300 0.05 to 0.20 70 to 300 0.05 to 0.20 T1500A 50 to 200 0.02 to 0.15 50 to 200 0.02 to 0.10 50 to 150 0.02 to 0.10 70 to 300 0.05 to 0.20 70 to 300 0.05 to 0.20 T1500Z 50 to 200 0.02 to 0.15 50 to 200 0.02 to 0.10 50 to 150 0.02 to 0.10 70 to 300 0.05 to 0.20 70 to 300 0.05 to 0.20 BN1000 120 to 300 0.03 to 0.15 BN2000 50 to 200 0.03 to 0.20 BN7000 50 to 200 0.05 to 0.20 DA1000 70 to 300 0.02 to 0.10 70 to 300 0.02 to 0.10 A24