| ISO | Materials | Material Designation | Material Condition | Cutting Speed Recommendations (Vc) |
| K | 15 | Grey cast iron (GG) | Pearlitic/ferritic :180 | 400-500 m/min |
| K | 16 | Grey cast iron (GG) | Pearlitic/martensiti :260 | 400-500 m/min |
| K | 17 | Nodular cast iron (GGG) | Ferritic :160 | 500-12000 m/min |
| K | 18 | Nodular cast iron (GGG) | Pearlitic :250 | 400-1000 m/min |
| S | 31 | High temp. alloys Fe based. | Annealed :200 | 90-200 m/min |
| S | 32 | High temp. alloys Fe based. | Cured :280 | 90-200 m/min |
| S | 33 | High temp. alloys. Ni or Co based. | Annealed :250 | 90-200 m/min |
| S | 34 | High temp. alloys. Ni or Co based. | Cured :350 | 90-200 m/min |
| S | 35 | High temp. alloys. Ni or Co based. | Castr :320 | 90-200 m/min |
| H | 38 | Hardened steel. | Hardened :560 | 80-140 m/min |
| H | 39 | Hardened steel. | Hardened :654 | 60-120 m/min |
| H | 40 | Chilled cast iron. | Cast :400 | 70-150 m/min |
| H | 41 | Cast iron. | Hardened :560 | 100-140 m/min |