HY-PRO® CARB Performance Sub-Micrograin Carbide End Mills List HP400 Side Milling (Fractional) Hardness – Up to 20 HRC 20 to 30 HRC 30 to 38 HRC 38 to 45 HRC WorkMaterial Cast Iron Medium SteelsMild SteelsAlloy SteelsTool SteelsTi Alloys (Annealed)Hardened SteelsPre-hardened SteelsStainless SteelsHardened Steels CuttingSpeed 320-460 SFM 262-393 SFM 230-328 SFM 164-262 SFM 115-213 SFM Depthof Cut aaar==01..45DD aaar==01..35DD Mill Dia. SpeedRPM Feedin/min SpeedRPM Feedin/min SpeedRPM Feedin/min SpeedRPM Feedin/min SpeedRPM Feedin/min 1/4 6,350 29.9 5,300 25.2 4,500 14.2 3,450 11.0 2,650 8.3 5/16 4,750 29.9 4,000 25.2 3,400 16.1 2,600 12.2 2,000 9.4 3/8 3,800 29.9 3,200 25.2 2,700 16.9 2,050 13.0 1,600 10.2 1/2 3,200 30.3 2,650 25.2 2,250 17.7 1,700 13.4 1,350 10.6 5/8 2,400 30.3 2,000 25.2 1,700 18.9 1,300 14.2 1,000 11.0 3/4 1,900 29.9 1,600 24.0 1,350 18.5 1,050 13.8 800 10.2 1 1,500 29.9 1,150 24.0 1,000 18.5 800 13.8 600 10.2 1088 End Mill Technical WWW.OSGTOOL.COM