Roughing Cut Cobalt High Speed Steel List 430E: For Aluminum - 3 Flute Slotting Work Material AluminumAluminum Alloys Cutting Speed 195-330 SFM Mill Dia. SpeedRPM Feedin/min 3/8 3,550 15.0 1/2 2,500 15.0 5/8 2,000 13.4 3/4 1,800 13.5 7/8 1,400 11.9 1 1,250 11.3 1/3 D 1-1/4 1,000 9.5 1-1/2 800 8.0 2 630 6.3 Cutting Depth = (1/3) Diameter Side Milling Work Material AluminumAluminum Alloys Cutting Speed 195-330 SFM Mill Dia. SpeedRPM Feedin/min 3/8 5,600 47.5 1/2 4,000 48.0 Aa 5/8 3,150 42.3 3/4 2,800 42.0 7/8 2,240 38.1 Ar 1 2,000 36.0 1-1/4 1,600 30.4 Aa = 1.5D 1-1/22 1,2501,000 25.030.0 Ar = 0.15D 1118 End Mill Technical WWW.OSGTOOL.COM