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VK60010.4900
High-speed steel HSS
DIN 341
D<=14 D>14
Cutting conditions
c fz (mm/r)
P.1 | Free-cutting steels, general construction steels
≤ 600 N/mm²
20
0,03
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
16
0,025
0,04
0,063
0,08
0,08
0,1
0,125
0,16
0,16
K.1 | Cast iron(≤ 240 HB)
≤ 820 N/mm²
20
0,03
0,05
0,08
0,1
0,1
0,125
0,16
0,2
0,2
K.2 | Cast iron(> 240 HB)
> 800 N/mm²
16
0,03
0,05
0,08
0,1
0,1
0,125
0,16
0,2
0,2
N.4 | Cooper-zinc alloys, cooper-tin alloys
≤ 850 N/mm²
18
0,015
0,025
0,04
0,05
0,05
0,063
0,08
0,1
0,1
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 C.
Point angle 118°
Right helix
Conical lip relief, split point, DIN 1412 form A
Drilling depth 15xD
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.
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