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- NC-spotting drills 90°, code VN50105, diameter 8 mm
VN50105.0800
High-speed steel HSS Co5
Cutting conditions
Material |
Strength |
Vc |
fz(mm/r)
Ø1 |
Ø2 |
Ø3,15 |
Ø4 |
Ø5 |
Ø6,3 |
Ø8 |
Ø10 |
Ø12,5 |
| P.1 | Free-cutting steels, general construction steels |
≤ 600 N/mm² |
40 |
0,016 |
0,05 |
0,08 |
0,1 |
0,1 |
0,125 |
0,16 |
0,2 |
0,2 |
| P.2 | General construction steels, steel castings |
≤ 850 N/mm² |
40 |
0,016 |
0,05 |
0,08 |
0,1 |
0,1 |
0,125 |
0,16 |
0,2 |
0,2 |
| P.3 | Tool steels low alloyed |
≤ 1100 N/mm² |
35 |
0,016 |
0,05 |
0,08 |
0,1 |
0,1 |
0,125 |
0,16 |
0,2 |
0,2 |
| P.4 | Heat treatable steels |
≤ 900 N/mm2 |
22 |
0,014 |
0,04 |
0,063 |
0,08 |
0,08 |
0,1 |
0,125 |
0,16 |
0,16 |
| M.1 | Corrosion- and acid-proof steels |
≤ 750 N/mm² |
12 |
0,014 |
0,04 |
0,063 |
0,08 |
0,08 |
0,1 |
0,125 |
0,16 |
0,16 |
| M.2 | Corrosion- and acid-proof steels |
750 - 850 N/mm² |
12 |
0,014 |
0,04 |
0,063 |
0,08 |
0,08 |
0,1 |
0,125 |
0,16 |
0,16 |
| M.3 | Corrosion- and acid-proof steels |
> 850 N/mm² |
8 |
0,008 |
0,025 |
0,4 |
0,05 |
0,05 |
0,063 |
0,8 |
0,1 |
0,1 |
| K.1 | Cast iron (≤ 240 HB) |
≤ 820 N/mm² |
32 |
0,018 |
0,063 |
0,1 |
0,125 |
0,125 |
0,16 |
0,2 |
0,25 |
0,25 |
| K.2 | Cast iron (> 240 HB) |
> 800 N/mm² |
27 |
0,018 |
0,063 |
0,1 |
0,125 |
0,125 |
0,16 |
0,2 |
0,25 |
0,25 |
| S.1 | Chrome-nickel alloys |
≤ 1500 N/mm² |
6 |
0,006 |
0,02 |
0,032 |
0,04 |
0,04 |
0,05 |
0,063 |
0,08 |
0,08 |
Calculations of cutting conditions
Product attributes
Universal usage. Suitable for materials up to strength 900 MPa.
Conical lip relief, DIN 1412 form N.
Right helix
Point angle 90°
Very high performance high speed steel with good toughness for milling cutters and for milling of materials up to the strength of 1200 MPa.
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