| 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 | 10-250 m/min |
| P | 2 | Non-alloy steel and cast steel, free cutting steel >=0.25%C. | Annealed :190 | 10-250 m/min |
| P | 3 | Non-alloy steel and cast steel, free cutting steel <0.55%C. | Quench and tempered. :250 | 10-250 m/min |
| P | 4 | Non-alloy steel and cast steel, free cutting steel >=0.55%C. | Annealed :220 | 10-250 m/min |
| P | 5 | Non-alloy steel and cast steel, free cutting steel >=0.55%C. | Quenched & tempered. :300 | 10-250 m/min |
| P | 6 | Low alloy & cast steel (less than 5% of alloying elements). | Annealed :200 | 10-250 m/min |
| P | 7 | Low alloy & cast steel (less than 5% of alloying elements). | Quenched & tempered :275 | 10-250 m/min |
| P | 8 | Low alloy & cast steel (less than 5% of alloying elements). | Quenched & tempered :300 | 10-250 m/min |
| P | 9 | Low alloy & cast steel (less than 5% of alloying elements). | Quenched & tempered :350 | 10-250 m/min |
| P | 10 | High alloyed steel, cast steel and tool steel. | Annealed :200 | 10-250 m/min |
| P | 11 | High alloyed steel, cast steel and tool steel. | Quenched & tempered :325 | 10-250 m/min |
| P | 12 | Stainless steel and cast steel. | Ferritic/martensitic :200 | 10-250 m/min |
| P | 13 | Stainless steel and cast steel. | Martensitic :240 | 10-250 m/min |
| M | 14 | Stainless steel and cast steel. | Austenitic :180 | 10-250 m/min |
| N | 21 | Aluminum-wrought alloy. | Not cureable : 60 | 10-200 m/min |
| N | 22 | Aluminum-wrought alloy. | Cured :100 | 10-200 m/min |
| N | 23 | Aluminum-cast, alloyed <12% Si. | Not cureable : 75 | 10-200 m/min |
| N | 24 | Aluminum-cast, alloyed. | Cured : 90 | 10-200 m/min |
| N | 25 | Aluminum-cast, alloyed >12% Si. | High temperature :130 | 10-200 m/min |
| N | 26 | Copper alloys >1% pb. | Free cutting :110 | 10-200 m/min |
| N | 27 | Copper alloys. | Brass : 90 | 10-200 m/min |
| N | 28 | Copper alloys. | Electrolitic copper :100 | 10-200 m/min |
| N | 29 | Non metallic. | Duro& fiber plastics : 60 | 10-200 m/min |
| N | 30 | Non metallic | Hard rubber : 55 | 10-200 m/min |