The innovative High Speed Disc ALUMASTER is a unique tool with an extremely high stock removal rate. It is ideal for processing aluminum as it does not generate hazardous or explosive dust. The ALUMASTER includes specially developed tungsten carbide cutting inserts fixed to the High Speed Disc. Special disc for processing aluminum alloys using an angle grinder. Version with HICOAT® coating for processing particularly demanding materials. Also suited to peripheral milling and milling out root seams. HSD-R version for radial applications. High Speed Disc ALUMASTER HSD-R 4-1/2"/5" HICOAT® including pre-mounted tungsten carbide cutting inserts, TORX key, and plastic box.