
| ISO | Workpiece material | Hardness | Chipbreaker | Priority | Recomended grade | Vc (m/min) Cutting speed |
| < 300 HB | DGS | First choice | AH7025, AH725 | 50 - 180 | ||
| Steels | < 300 HB | DGM | Priority for wear resistance | T9125 | 80 - 200 | |
| S45C, SCM435, etc. | < 300 HB | DGS | Priority for fracture resistance | GH130 | 50 - 120 | |
| C45, 34CrMo4, etc. | < 300 HB | DGS | Priority for surface finish | NS9530 | 80 - 220 | |
| < 300 HB | DGL | For mild steel Chip control | AH7025 | 50 - 180 | ||
| Stainless steels SUS303 etc | < 200 HB | DGS | First choice | GH130 | 50 - 120 | |
| , . X10CrNiS18-9, etc. | < 200 HB | DGM | Priority for impact resistance | AH7025, AH725 | 50 - 120 | |
| Grey cast irons FC250, etc. 250, etc. | - | DGM | First choice | GH130 | 50 - 180 | |
| Ductile cast irons FC250, etc. 450-10S, etc. | - | DGM | First choice | GH130 | 50 - 120 | |
| Aluminium alloys Si < 12% | - | DGG | First choice | TH10 | 100 - 500 | |
| Titanium alloys | < HRC 40 | DGM | First choice | AH905 | 20 - 80 | |
| Ti-6Al-4V, etc. | < HRC 40 | DGS | Priority for fracture resistance | AH7025, AH725 | 20 - 80 | |
| Hardened steels SCM435, etc. 34CrMo4, etc. | > HRC 50 | DGN | First choice | BX360 | 80 - 150 |
External
Internal
Threading
Parting-off