WIDIA - vrtání | KL-TECH s.r.o. | www.klte.cz widia-vrtání | Page 249

Indexable Drills
Torque Requirement
„ 
Torque Requirement
Steel 4140
500
450
f = 0.25
400
[Nm]
350
f = 0.20
300
250
f = 0.16
200
150
f = 0.12
100
50
0
12
16
20
24
28
32
36
40
44
48
52
56
60
64
68
Drill Diameter D1 (mm)
Stainless Steel 304
500
f = 0.20
450
f = 0.18
400
350
f = 0.15
300
250
f = 0.12
200
150
100
50
0
12
16
20
24
28
32
36
40
44
48
52
56
60
64
68
Drill Diameter D1 (mm)
Cast Iron GG25
500
450
400
300
f = 0.25
250
200 f = 0.20
150 f = 0.16
100
f = 0.12
50
0
12
16
20
24
28
32
36
40
44
48
52
56
60
64
68
Drill Diameter D1 (mm)
widia.com
V39
350