Indexable Drills
Torque Requirement


„
Torque Requirement

Steel 4140
500
450
f = 0.25
400
350
f = 0.20
Torque [Nm] 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
Torque [Nm]


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
350
Torque [Nm]


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


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