TEMO SC-5 NF Aluminum Cut CARBIDE Rotary BURR FILE, 1/2 inch (12.7mm) HEAD Cylinder Ball, 1/4 inch (6.35mm) Diameter 2 inch (50.8mm) Long Shank These carbide burrs are designed to grind and shape aluminum and other non-ferrous metals. They are used in electric, pneumatic, and hydraulic die grinder. These burrs are essentially electric files which can grind in tight spaces with precision focus. Used by mechanics, machinists, tradesman, and hobbyists. Aluminum cut burrs are for use on non-ferrous and non-metallic materials. It is designed for rapid stock removal with minimum chip loading. Made with tungsten carbide and suitable for deburring and polishing. Aluminum cut head and meet US standard with 1/4" (6.35mm) shank,1/2" (12.7mm) head diameter, 1" (25.4mm) cut length, and 3" total length. SC-5 Cylinder Ball Nose Head Shape; Individually packaged with a protective plastic tube.