Torque Requirement

„ Torque Requirement

Steel 4140

500 450 f = 0.25 400 350 f = 0.20 300 250 f = 0.16 200 150 f = 0.12 100 50 0 1 2 1 6 2 0 2 4 2 8 3 2 3 6 4 0 4 4 4 8 5 2 5 6 6 0 6 4 6 8

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 1 2 1 6 2 0 2 4 2 8 3 2 3 6 4 0 4 4 4 8 5 2 5 6 6 0 6 4 6 8

Drill Diameter D1 (mm)

Cast Iron GG25

500 450 400 350 300 f = 0.25 250 f = 0.20 200 150 f = 0.16 100 f = 0.12 50 0 1 2 1 6 2 0 2 4 2 8 3 2 3 6 4 0 4 4 4 8 5 2 5 6 6 0 6 4 6 8

Drill Diameter D1 (mm)