Solid Carbide EndmillsMilling Solid Carbide Endmills Recommended Cutting Conditions Table 021 H650 Seires EHSRC4 Material PREHARDENED STEELSNAK80 CENA1 HARDENED STEELSSKD61,SKD11 Hardened SteelSKD11,SKH51 Hardness HRC 35~45 HRC 40~55 HRC 55~65 Dia RPM Feed (mm/min) RPM Feed (mm/min) RPM Feed (mm/min) 1mm 38000 1050 25500 710 20500 430 2mm 26000 1250 17500 840 14500 520 3mm 17300 1250 11500 840 9500 520 4mm 13200 1300 8800 880 7200 540 5mm 12500 1500 8300 1000 6400 580 6mm 10350 1400 6900 950 5300 560 8mm 7800 1350 5200 900 4000 520 10mm 6450 1260 4100 840 3200 480 12mm 5250 1260 3500 840 2650 480 1.Use as highly rigid and accurate machine as possible. 2.If the rpm available is lower than the recommend condition, please reduce the feed rate to the same ratio. 3.Use long shank type please reduce the rpm and feed rate. 4.The Feed and RPM may be changed depending on the M/C conditions ,lubricating and cooling system. A220