Stepped drills
| D | d | l1 | Item code | On stock |
|---|---|---|---|---|
| 4, 5, 6, 7, 8, 9, 10, 11, 12 | 6 | 65 | VS94010.040120 | No |
| 4, 6, 8, 10, 12, 14, 16, 18, 20 | 8 | 75 | VS94010.040200 | Yes |
| 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30 | 10 | 100 | VS94010.060300 | Yes |
| 6, 9, 13, 16, 19, 21, 23, 26, 29, 32, 35, 38 | 10 | 100 | VS94010.060380 | No |
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 |
| K.1 | Cast iron (≤ 240 HB) | ≤ 820 N/mm² |
| K.2 | Cast iron (> 240 HB) | > 800 N/mm² |
| N.1 | Aluminium, Aluminium cast alloys Si (Si ≤ 6%) | ≤ 400 N/mm² |
| N.2 | Aluminium cast alloys Si (Si ≤ 12%) | ≤ 600 N/mm² |
| N.3 | Aluminium cast alloys Si (Si > 12%) | ≤ 600 N/mm² |
| N.4 | Cooper-zinc alloys, cooper-tin alloys | ≤ 800 N/mm² |
Calculations of cutting conditions
Product attributes
High speed steel of average performance, it is applicable especially for cutters of smaller diameters and for milling of materials up to the strength of 900 MPa.