TEMO SC-5L6 NF Aluminum Cut Carbide Rotary Burr File, 1/2 inch (12.7mm) Head Cylinder Ball, 1/4 inch (6.35mm) Diameter 6 inch (152mm) Long Shank Aluminum cut SC-5L6 Cylinder Ball Nose Head Shape 1/4" (6.35mm) shank and 1/2" (12.7mm) head diameter; 6" shank length, 7" total length. Made with tungsten carbide and suitable for deburring and polishing. packaged with a clear plastic tube. Aluminum cut burrs are for use on non-ferrous and non-metallic materials. It is designed for rapid stock removal with minimum chip loading. 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.