Keystone Industries’ Hatho Habras Discs have a unique, three-dimensional abrasive/flexible bristle design that provides a uniform finish on dental laboratory work. These discs are ideal for heavy cleaning (coarse), removing light oxide (medium), pre-polishing, semi-finishing, blending, texturizing, and polishing (fine). Habras Discs, available in three different coarses, provide the convenience of a pre-charged abrasive, and do not generate the heat associated with rubber wheels. The discs have embedded cubitron mineral abrasive, which is much harder than most metals. They’re perfect for removal of oxides and polish without using compounds. They are also ideal for cleaning metal work and hard-to-reach areas. Mounting 4 discs together is recommended for best performance (available in 4/Pkg).