CARBIDE RECOMMENDED CUTTING CONDITIONS Hardened steel (45 ─ 55HRC) Work Material SQUARE AISI H13 etc. RE LU Revolution Table feed Depth of cut ap (inch) (inch) (min-1) (IPM) (inch) .0938 40000 21.2 .0002 BALL .0078 .1290 30000 17.7 .0002 .1875 20000 10.6 .0001 .1875 40000 70.8 .0008 .0156 .2500 25000 44.3 .0008 RADIUS .3750 15000 26.6 .0004 .3750 40000 113.4 .0028 .0313 .5000 30000 85.1 .0016 .7500 10000 28.4 .0008 TAPER .5625 40000 141.8 .003 .0469 .7500 20000 70.8 .002 1.1250 10000 35.5 .001 .0625 .7500 30000 124.0 .004 ROUGHING BARREL .0938 1.1250 20000 106.3 .006 .1250 1.5000 15000 106.3 .008 0.1R (RE 0.1RE << (R<<3/64) 3/64) 0.2RE << (R>> 0.2R (RE 3/64) 3/64) Depth of cut