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Home Search Parallel shank twist drills, long series, type N, code VN20015, diameter 5 mm
VN20015.0500
High-speed steel HSS Co5
DIN 340
Cutting conditions
c fz (mm/r)
P.1 | Free-cutting steels, general construction steels
≤ 600 N/mm²
36
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
32
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
18
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
8
0,012
0,032
0,05
0,063
0,063
0,08
0,1
0,125
0,125
M.3 | Corrosion- and acid-proof steels
> 850 N/mm²
10
0,012
0,032
0,05
0,063
0,063
0,08
0,1
0,125
0,125
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
26
0,018
0,063
0,1
0,125
0,125
0,16
0,2
0,25
0,25
N.4 | Cooper-zinc alloys, cooper-tin alloys
≤ 850 N/mm²
30
0,014
0,04
0,063
0,08
0,08
0,1
0,125
0,16
0,16
S.1 | Chrome-nickel alloys
≤ 1500 N/mm²
5
0,006
0,02
0,032
0,04
0,04
0,05
0,063
0,08
0,08
Calculations of cutting conditions
Product attributes
Normal profile of flute, normal core, point angle 118°. Drills made of HSS Co mildly strenghtened core, point angle 130°.
Conical lip relief, split point, DIN 1412 form A
Drilling depth 10xD
Very high performance high speed steel with good toughness for milling cutters and for milling of materials up to the strength of 1200 MPa.
Point angle 128°
Right helix
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