Centre drills SC 60° form A
| D | d | l1 | l2 | Item code | On stock |
|---|---|---|---|---|---|
| 3,15 | 1 | 31 | 1,3-1,7 | VS92012.010 | Yes |
| 3,15 | 1,25 | 31 | 1,6 - 2 | VS92012.0125 | Yes |
| 4 | 1,6 | 35 | 2 - 2,6 | VS92012.016 | Yes |
| 5 | 2 | 40 | 2,5 - 3,1 | VS92012.020 | No |
| 6,3 | 2,5 | 45 | 3,1 - 3,8 | VS92012.025 | Yes |
| 8 | 3,15 | 50 | 3,9 - 4,6 | VS92012.0315 | Yes |
| 10 | 4 | 55 | 5 - 5,9 | VS92012.040 | Yes |
Cutting conditions
Material |
Strength |
|---|---|
| P.1 | Free-cutting steels, general construction steels | ≤ 600 N/mm² |
| P.2 | General construction steels, steel castings | ≤ 850 N/mm² |
| P.3 | Tool steels low alloyed | ≤ 1100 N/mm² |
| M.1 | Corrosion- and acid-proof steels | ≤ 750 N/mm² |
| M.2 | Corrosion- and acid-proof steels | 750-850 N/mm² |
| M.3 | Corrosion- and acid-proof steels | > 850 mm² |
| N.1 | Aluminium, Aluminium cast alloys Si (Si ≤ 6%) | ≤ 400 N/mm² |
| N.4 | Cooper-zinc alloys, cooper-tin alloys | ≤ 800 N/mm² |
Calculations of cutting conditions
Product attributes
Right helix
Carbide materials are characterised by high compressive strength, high hardness and therefore high wear resistance, but also limited flexural strength and toughness.