| ISO | Materials | Material Designation | Material Condition | Cutting Speed Recommendations (Vc) |
| N | 21 | Aluminum-wrought alloy. | Not cureable : 60 | 100-300 m/min |
| N | 22 | Aluminum-wrought alloy. | Cured :100 | 100-300 m/min |
| N | 23 | Aluminum-cast, alloyed <12% Si. | Not cureable : 75 | 100-300 m/min |
| N | 24 | Aluminum-cast, alloyed. | Cured : 90 | 100-300 m/min |
| N | 25 | Aluminum-cast, alloyed >12% Si. | High temperature :130 | 50-100 m/min |
| N | 26 | Copper alloys >1% pb. | Free cutting :110 | 75-150 m/min |
| N | 27 | Copper alloys. | Brass : 90 | 90-200 m/min |
| N | 28 | Copper alloys. | Electrolitic copper :100 | 75-150 m/min |
| N | 29 | Non metallic. | Duro& fiber plastics : 60 | 75-150 m/min |
| N | 30 | Non metallic | Hard rubber : 55 | 75-150 m/min |
| S | 31 | High temp. alloys Fe based. | Annealed :200 | 35-45 m/min |
| S | 32 | High temp. alloys Fe based. | Cured :280 | 25-35 m/min |
| S | 33 | High temp. alloys. Ni or Co based. | Annealed :250 | 25-30 m/min |
| S | 34 | High temp. alloys. Ni or Co based. | Cured :350 | 20-30 m/min |
| S | 35 | High temp. alloys. Ni or Co based. | Castr :320 | 25-35 m/min |
| S | 36 | Titanium Ti alloys. | :310 | 120-160 m/min |
| S | 37 | Titanium Ti alloys. | Alpha+beta alloys cu :310 | 50-60 m/min |
| H | 38 | Hardened steel. | Hardened :560 | 15-20 m/min |
| H | 39 | Hardened steel. | Hardened :654 | 15-20 m/min |
| H | 40 | Chilled cast iron. | Cast :400 | 15-20 m/min |
| H | 41 | Cast iron. | Hardened :560 | 15-20 m/min |