Counterbores with fixed pilot, 90°
| Thread | α | D | d | l1 | d1 | Item code | On stock |
|---|---|---|---|---|---|---|---|
| M 6 | 90 | 11,4 | 8 | 80 | 6,4 | CS15305.11464 | No |
Cutting conditions
Material |
Strength |
|---|---|
| P.2 | General construction steels, steel castings | ≤ 850 N/mm² |
| P.3 | Tool steels low alloyed | ≤ 1100 N/mm² |
| P.4 | Heat treatable steels | ≤ 900 N/mm² |
| P.5 | Tool steels high alloyed | ≤ 1100 N/mm² |
| P.6 | Tool and treated steels | > 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 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.4 | Cooper-zinc alloys, cooper-tin alloys | ≤ 800 N/mm² |
| S.1 | Chrome-nickel alloys | ≤ 1500 N/mm² |
Calculations of cutting conditions
Product attributes
Point angle 90° with fixed pilot
Very high performance high speed steel with good toughness for milling cutters and for milling of materials up to the strength of 1200 MPa.