Stepped drill bits with helical groove, TIALN
| D | d | l1 | Item code | On stock |
|---|---|---|---|---|
| 4, 5, 6, 7, 8, 9, 10, 11, 12 | 6 | 65 | VS94015.040120 | Yes |
| 4, 6, 8, 10, 12, 14, 16, 18, 20 | 8 | 75 | VS94015.040200 | Yes |
| 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30 | 10 | 100 | VS94015.060300 | Yes |
| 6, 9, 13, 16, 19, 21, 23, 26, 29, 32, 35, 38 | 10 | 100 | VS94015.060380 | 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 |
| 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 |
Product attributes
Very high performance high speed steel with good toughness for milling cutters and for milling of materials up to the strength of 1200 MPa.
Its advantage is in high hardness in higher temperaures, good oxidation resistance and low temperature conductivity. Universal usage with emphasis on high-speed miling without cooling. Siutable for milling of hard materials.