| ISO | Materials | Material Designation | Material Condition | Cutting Speed Recommendations (Vc) |
| P | 1 | Non-alloy steel and cast steel, free cutting steel <0.25%C. | Annealed :125 | 230-400 m/min |
| P | 2 | Non-alloy steel and cast steel, free cutting steel >=0.25%C. | Annealed :190 | 200-350 m/min |
| P | 3 | Non-alloy steel and cast steel, free cutting steel <0.55%C. | Quench and tempered. :250 | 160-320 m/min |
| P | 4 | Non-alloy steel and cast steel, free cutting steel >=0.55%C. | Annealed :220 | 190-370 m/min |
| P | 5 | Non-alloy steel and cast steel, free cutting steel >=0.55%C. | Quenched & tempered. :300 | 140-330 m/min |
| P | 6 | Low alloy & cast steel (less than 5% of alloying elements). | Annealed :200 | 160-350 m/min |
| P | 7 | Low alloy & cast steel (less than 5% of alloying elements). | Quenched & tempered :275 | 150-330 m/min |
| P | 8 | Low alloy & cast steel (less than 5% of alloying elements). | Quenched & tempered :300 | 140-280 m/min |
| P | 9 | Low alloy & cast steel (less than 5% of alloying elements). | Quenched & tempered :350 | 130-250 m/min |
| P | 10 | High alloyed steel, cast steel and tool steel. | Annealed :200 | 160-330 m/min |
| P | 11 | High alloyed steel, cast steel and tool steel. | Quenched & tempered :325 | 130-250 m/min |
| P | 12 | Stainless steel and cast steel. | Ferritic/martensitic :200 | 150-300 m/min |
| M | 14 | Stainless steel and cast steel. | Austenitic :180 | 140-280 m/min |