SQUAREBALLRADIUSTAPERBARRELROUGHINGSOLID END MILLS CARBIDE RECOMMENDED CUTTING CONDITIONS Hardened steel (45 ─ 55HRC) Work Material AISI H13 etc. RE LU Revolution(inch)(inch)(min-1)Table feed(IPM) Depth of cutap(inch) .0938 40000 21.2 .0002 .0078 .1290 30000 17.7 .0002 .1875 20000 10.6 .0001 .1875 40000 70.8 .0008 .0156 .2500 25000 44.3 .0008 .3750 15000 26.6 .0004 .3750 40000 113.4 .0028 .0313 .5000 30000 85.1 .0016 .7500 10000 28.4 .0008 .5625 40000 141.8 .003 .0469 .7500 20000 70.8 .002 1.1250 10000 35.5 .001 .0625 .7500 30000 124.0 .004 .0938 1.1250 20000 106.3 .006 .1250 1.5000 15000 106.3 .008 <<0.01.R1RE (RE<<3/36/46)4) <<0.02.R2RE (RE>>3/36/46)4) Depth of cut