HY-PRO® CARB VGX® High Performance Variable Geometry End Mills List VG441BN: 4 Flute - Ball Nose Side Milling Hardness Up to 25 HRC 25 to 30 HRC 30 to 35 HRC 35 to 45 HRC 45 to 50 HRC < 40 HRC < 45 HRC WorkMaterial Mild SteelsCarbon SteelsCast Iron400 StainlessSteelsAlloy SteelsTool Steels300 StainlessSteelsPH StainlessHardened SteelsSteelsPre-hardenedHardened SteelsSteelsHardenedSteelsTitanium AlloysHigh Temp.AlloysInconelHastelloy CuttingSpeed 400-500 SFM 300-400 SFM 200-350 SFM 200-250 SFM 175-225 SFM 150-250 SFM 100-135 SFM Depth Aa=1.5D Aa=1.25D Aa=1.25D Aa=1.25D Aa=1D of Cut Ar=0.5D Ar=0.4D Ar=0.2D Ar=0.4D Ar=0.2D Mill Dia. Speed Feed Speed Feed Speed Feed Speed Feed Speed Feed Speed Feed Speed FeedRPMin/minRPMin/minRPMin/minRPMin/minRPMin/minRPMin/minRPMin/min 1/8 13,750 44.0 10,695 25.7 8,400 18.6 6,875 15.2 6,110 14.5 6,110 12.9 3,665 9.5 3/16 9,170 46.8 7,130 28.8 5,600 20.6 4,585 16.9 4,075 16.3 4,075 13.7 2,445 10.9 1/4 6,875 46.8 5,350 31.1 4,200 20.3 3,440 16.7 3,050 16.8 3,050 13.9 1,835 11.2 5/16 5,500 48.1 4,210 31.8 3,350 21.4 2,750 17.6 2,450 17.8 2,450 15.1 1,465 11.7 3/8 4,585 47.1 3,565 30.5 2,800 20.6 2,290 16.9 2,040 16.3 2,040 14.6 1,220 11.1 7/16 3,930 45.4 3,055 30.2 2,400 20.1 1,965 16.5 1,750 16.3 1,750 14.0 1,050 11.1 1/2 3,440 45.4 2,675 29.2 2,100 19.5 1,720 15.9 1,525 15.7 1,525 13.9 915 10.8 5/8 2,750 40.6 2,140 27.7 1,700 19.0 1,375 15.4 1,225 14.7 1,225 12.5 730 9.9 3/4 2,290 37.3 1,785 25.3 1,400 16.8 1,150 13.8 1,025 13.5 1,025 11.8 610 9.3 1 1,720 33.0 1,340 22.8 1,050 14.9 860 12.2 765 12.2 765 10.6 460 8.4 1 1/4 1,375 26.4 1,070 18.2 850 12.1 690 9.8 610 9.7 610 8.3 365 6.7 Slotting Hardness Up to 25 HRC 25 to 30 HRC 30 to 35 HRC 35 to 45 HRC 45 to 50 HRC < 40 HRC < 45 HRC WorkMaterial Mild SteelsCarbon SteelsCast Iron400 StainlessSteelsAlloy SteelsTool Steels300 StainlessSteelsPH StainlessHardened SteelsSteelsPre-hardenedHardened SteelsSteelsHigh Temp.HardenedSteelsTitanium AlloysAlloysInconelHastelloy CuttingSpeed 325-400 SFM 250-325 SFM 175-275 SFM 160-200 SFM 140-180 SFM 125-200 SFM 75-100 SFM Depthof Cut Aa=1D Aa=0.75D Aa=0.5D Aa=0.5D Aa=0.2D Mill Dia. Speed Feed Speed Feed Speed Feed Speed Feed Speed Feed Speed Feed Speed FeedRPMin/minRPMin/minRPMin/minRPMin/minRPMin/minRPMin/minRPMin/min 1/8 11,240 35.8 8,860 21.3 6,900 15.4 5,500 10.7 4,890 11.6 5,050 10.6 2,750 7.3 3/16 7,495 38.5 5,910 23.9 4,600 17.5 3,670 11.5 3,260 12.8 3,350 11.5 1,835 8.1 1/4 5,620 37.9 4,430 25.5 3,450 17.2 2,750 12.2 2,445 14.0 2,550 11.8 1,375 8.1 5/16 4,500 39.4 3,545 26.8 2,750 18.3 2,200 12.9 1,955 14.2 2,000 11.8 1,100 9.0 3/8 3,750 38.2 2,955 25.5 2,300 17.5 1,835 12.2 1,630 12.8 1,700 11.6 915 8.3 7/16 3,210 37.1 2,530 24.7 1,950 16.7 1,575 11.8 1,395 12.8 1,450 11.8 785 8.3 1/2 2,810 37.2 2,215 24.2 1,700 16.1 1,375 11.5 1,225 12.8 1,300 12.1 690 8.1 5/8 2,250 33.1 1,775 22.5 1,400 15.9 1,100 11.0 975 11.6 1,000 10.0 550 7.6 3/4 1,875 31.1 1,480 20.9 1,150 14.4 920 10.0 815 10.5 850 9.4 460 6.9 1 1,405 26.7 1,110 18.7 875 12.6 685 8.6 610 9.8 650 9.0 345 6.5 1 1/4 1,115 21.2 885 14.9 700 10.1 550 6.9 490 7.8 500 6.9 275 5.1 1078 End Mill Technical WWW.OSGTOOL.COM