Feed Force [(kN)/(lbf)]Torque [(pound force foot)/(Nm)] Top Cut 4™ Indexable Drills • Top Cut 4 Feed Force Requirement 10 2250 Stainless Steel 304 9 2025 f = 0.20 .0079 IPR 81800 f = 0.18.0071 IPR 7 f = 0.15 1575 .0059 IPR 6 f = 0.12 1350 .0047 IPRSteel 4140 5 1125 f = 0.25.0098 IPR 4 f =0.20 900 .0079 IPR 3 f = 0.16 675 .0063 IPR 2 f =0.12 450 .0047 IPRCast Iron GG25 1 225 f = 0.25.0098 IPR 0 f = 0.20 12 16 20 24 28 32 36 40 44 48 52 56 60 64 68 .0079 IPR 0.472 0.630 0.787 0.945 1.102 1.260 1.417 1.575 1.732 1.890 2.047 2.205 2.362 2.520 2.677 f = 0.16 .0059 IPR Drill Diameter D1 [(mm)/(inch)] f = 0.12 .0047 IPR Torque Requirement 500 369 Stainless Steel 304 450 332 f = 0.20 .0079 IPR 400295 f = 0.18.0071 IPR 350 f = 0.15 258 .0059 IPR 300 f = 0.12 221 .0047 IPRSteel 4140 250 184 f = 0.25.0098 IPR 200 f =0.20 148 .0079 IPR 150 f = 0.16 111 .0059 IPR 100 f =0.12 74 .0047 IPRCast Iron GG25 50 37 f = 0.25.0098 IPR 0 f = 0.20 12 16 20 24 28 32 36 40 44 48 52 56 60 64 68 .0079 IPR 0.472 0.630 0.787 0.945 1.102 1.260 1.417 1.575 1.732 1.890 2.047 2.205 2.362 2.520 2.677 f = 0.16 .0059 IPR Drill Diameter D1 [(mm)/(inch)] f = 0.12 .0047 IPR widia.com 138 widia.com