CNC fully ground. Tolerance controlled at .005-.001mm. Made from Tungsten Carbide K20 Micrograin (hardness >90 HRC) with steel shank welded to the burr. Double-Cut(Cross) and Non-Ferrous-Aluminium Cut. Non-Ferrous-Aluminium Cut – for use on non-ferrous and non-metallic materials. It is designed for rapid stock removal with minimum chip loading. Double Cut – allows for rapid stock removal and better operator control. Chip size is reduced and tool speed can be slower than normal speeds.