HY-PRO® CARB Performance Sub-Micrograin Carbide End Mills List HP411 Slotting (Fractional) Hardness Up to 20 HRC 20 to 30 HRC 30 to 38 HRC 38 to 45 HRC 45 to 55 HRC 55 to 60 HRC WorkMaterial Mild SteelsCarbon SteelsAlloy SteelsTool SteelsTi Alloys (Annealed)Hardened SteelsPre-hardenedSteelsTi Alloys (SolutionTreated and Aged)Hardened SteelsPre-hardenedSteelsStainless SteelsInconelNi Based AlloysHardened SteelsHardened Steels CuttingSpeed 294 SFM 236 SFM 196 SFM 164 SFM 105 SFM 72 SFM Depthof Cut aa=0.1D aa=0.02D Mill Dia. SpeedRPM Feedin/minSpeedRPM Feedin/min SpeedRPM Feedin/minSpeedRPM Feedin/minSpeedRPM Feedin/minSpeedRPM Feedin/min 1/8 8,900 39.4 7,200 27.6 5,900 19.7 5,100 15.7 3,200 5.9 2,100 2.0 3/16 6,700 39.4 5,400 27.6 4,450 19.7 3,800 15.7 2,400 5.9 1,600 2.0 1/4 4,500 39.4 3,600 27.6 3,000 19.7 2,500 15.7 1,600 5.9 1,100 2.0 Slotting (Metric) Hardness Up to 20 HRC 20 to 30 HRC 30 to 38 HRC 38 to 45 HRC 45 to 55 HRC 55 to 60 HRC WorkMaterial Mild SteelsCarbon SteelsAlloy SteelsTool SteelsTi Alloys (Annealed)Hardened SteelsPre-hardenedSteelsTi Alloys (SolutionTreated and Aged)Hardened SteelsPre-hardenedSteelsStainless SteelsInconelNi Based AlloysHardened SteelsHardened Steels CuttingSpeed 294 SFM 236 SFM 196 SFM 164 SFM 105 SFM 72 SFM Depthof Cut aa=0.1D aa=0.02D Mill Dia. SpeedRPM Feedin/minSpeedRPM Feedin/min SpeedRPM Feedin/minSpeedRPM Feedin/minSpeedRPM Feedin/minSpeedRPM Feedin/min 3 10,680 47.2 8,640 33.1 7,080 23.6 6,120 18.9 3,840 7.1 2,520 2.4 4 8,040 47.2 6,480 33.1 5,400 23.6 4,560 18.9 2,880 7.1 1,920 2.4 5 6,360 47.2 5,160 33.1 4,320 23.6 3,720 18.9 2,280 7.1 1,560 2.4 6 5,400 47.2 4,320 33.1 3,600 23.6 3,000 18.9 1,920 7.1 1,320 2.4 WWW.OSGTOOL.COM End Mill Technical 1091