ISOWorkpiece materialHardnessChipbreakerPriorityRecomended gradeVc (m/min) Cutting speed
< 300 HBDGSFirst choiceAH7025, AH72550 - 180
Steels< 300 HBDGMPriority for wear resistanceT912580 - 200
S45C, SCM435, etc.< 300 HBDGSPriority for fracture resistanceGH13050 - 120
C45, 34CrMo4, etc.< 300 HBDGSPriority for surface finishNS953080 - 220
< 300 HBDGLFor mild steel Chip controlAH702550 - 180
Stainless steels SUS303 etc< 200 HBDGSFirst choiceGH13050 - 120
, . X10CrNiS18-9, etc.< 200 HBDGMPriority for impact resistanceAH7025, AH72550 - 120
Grey cast irons FC250, etc. 250, etc.-DGMFirst choiceGH13050 - 180
Ductile cast irons FC250, etc. 450-10S, etc.-DGMFirst choiceGH13050 - 120
Aluminium alloys Si < 12%-DGGFirst choiceTH10100 - 500
Titanium alloys< HRC 40DGMFirst choiceAH90520 - 80
Ti-6Al-4V, etc.< HRC 40DGSPriority for fracture resistanceAH7025, AH72520 - 80
Hardened steels SCM435, etc. 34CrMo4, etc.> HRC 50DGNFirst choiceBX36080 - 150

External

Internal

Threading

Parting-off

Referent pages : Toolhoders → G101 - G102