Carbide Micrograin Carbide End Mills Standard 2 Flute and 3 Flute Carbide Side Milling (Fractional) Hardness – – Up to 20 HRC 20 to 30 HRC 30 to 40 HRC 40 to 50 HRC WorkMaterial Aluminum Cast Iron Mild Carbon SteelsMild Steels Pre-hardenedSteelsDie & Alloy SteelsPre-hardenedSteelsDie & Alloy SteelsHardened Steels CuttingSpeed 330-400 SFM 100-150 SFM 100-150 SFM 80-115 SFM 80-100 SFM 50 SFM Depthof Cut aaar==01..15DD Mill Dia. SpeedRPM Feedin/minSpeedRPM Feedin/minSpeedRPM Feedin/min SpeedRPM Feedin/minSpeedRPM Feedin/minSpeedRPM Feedin/min 0.015 100,000 15.7 31,500 3.9 30,000 2.0 25,000 1.2 25,000 0.6 16,000 0.3 0.020 62,000 17.7 22,400 4.9 22,000 2.4 16,000 1.4 16,000 0.7 9,500 0.4 0.030 40,000 17.7 16,000 4.9 14,000 2.4 10,000 1.4 10,000 0.7 6,000 0.4 3/64 31,500 17.7 14,000 6.9 11,000 3.3 8,000 2.4 8,000 1.4 4,800 0.6 1/16 21,200 17.7 9,500 6.9 7,500 3.3 5,300 2.4 5,400 1.4 3,200 0.6 5/64 16,000 17.7 7,100 9.8 5,500 3.3 4,000 2.4 4,000 1.4 2,400 1.0 1/8 12,500 17.7 4,750 11.8 4,500 5.9 3,550 4.7 3,150 1.8 1,600 1.0 5/32 9,500 18.7 3,550 11.8 3,550 6.9 2,650 4.7 2,360 1.8 1,200 1.0 3/16 7,500 18.7 2,800 11.8 2,800 7.9 2,120 4.9 1,900 1.8 950 1.0 1/4 6,300 18.7 2,360 11.8 2,360 7.9 1,700 4.9 1,600 1.8 800 1.0 5/16 4,750 19.7 1,800 11.8 1,800 7.9 1,320 4.9 1,180 1.8 600 1.0 3/8 3,750 19.7 1,400 12.4 1,400 8.9 1,060 4.9 950 1.8 480 1.0 1/2 3,150 22.0 1,180 12.4 1,180 8.9 850 4.9 800 1.8 400 1.0 5/8 2,360 22.0 900 14.8 900 9.8 670 5.5 600 1.8 300 1.0 3/4 1,900 22.0 710 14.8 710 9.8 530 5.9 475 1.8 240 1.0 1 1,500 19.7 560 14.8 560 9.8 425 5.5 375 1.4 190 0.8 Side Milling (Metric) Hardness – – Up to 20 HRC 20 to 30 HRC 30 to 40 HRC 40 to 50 HRC WorkMaterial Aluminum Cast Iron Mild Carbon SteelsMild Steels Pre-hardenedSteelsDie & Alloy SteelsPre-hardenedSteelsDie & Alloy SteelsHardened Steels CuttingSpeed 330-400 SFM 100-150 SFM 100-150 SFM 80-115 SFM 80-100 SFM 50 SFM Depthof Cut aaar==01..15DD Mill Dia. SpeedRPM Feedin/minSpeedRPM Feedin/minSpeedRPM Feedin/min SpeedRPM Feedin/minSpeedRPM Feedin/minSpeedRPM Feedin/min 0 100,000 15.7 31,500 3.9 30,000 2.0 25,000 1.2 25,000 0.6 16,000 0.3 1 62,000 17.7 22,400 4.9 22,000 2.4 16,000 1.4 16,000 0.7 9,500 0.4 1 40,000 17.7 16,000 4.9 14,000 2.4 10,000 1.4 10,000 0.7 6,000 0.4 1 31,500 17.7 14,000 6.9 11,000 3.3 8,000 2.4 8,000 1.4 4,800 0.6 2 21,200 17.7 9,500 6.9 7,500 3.3 5,300 2.4 5,400 1.4 3,200 0.6 2 16,000 17.7 7,100 9.8 5,500 3.3 4,000 2.4 4,000 1.4 2,400 0.6 3 12,500 17.7 4,750 11.8 4,500 5.9 3,550 4.7 3,150 1.8 1,600 1.0 4 9,500 18.7 3,550 11.8 3,550 6.9 2,650 4.7 2,360 1.8 1,200 1.0 5 7,500 18.7 2,800 11.8 2,800 7.9 2,120 4.9 1,900 1.8 950 1.0 6 6,300 18.7 2,360 11.8 2,360 7.9 1,700 4.9 1,600 1.8 800 1.0 8 4,750 19.7 1,800 11.8 1,800 7.9 1,320 4.9 1,180 1.8 600 1.0 10 3,750 19.7 1,400 12.4 1,400 8.9 1,060 4.9 950 1.8 480 1.0 12 3,150 22.0 1,180 12.4 1,180 8.9 850 4.9 800 1.8 400 1.0 16 2,360 22.0 900 14.8 900 9.8 670 5.5 600 1.8 300 1.0 20 1,900 22.0 710 14.8 710 9.8 530 5.9 475 1.8 240 1.0 25 1,500 19.7 560 14.8 560 9.8 425 5.5 375 1.4 190 0.8 (1) Increase speeds & feeds 5-10% for Series 412 and 422. (2) Reduce speeds & feeds 20-30% for Series 462. (3) Reduce speeds & feeds 40-50% for Series 482. (4) Increase speeds & feeds 20-30% for 402 TiN. (5) Column for Hardened Steels (40-50 HRC) is for Series 402 TiN and 403 TiN only. (6) Increase speeds & feeds 20-30% for Series 403 and 445. (7) Increase speeds & feeds 20-40% for Series 403 TiN. WWW.OSGTOOL.COM End Mill Technical 1105