Ideal for removing rust heat marks tarnish excess solder scratches corrosion blending in and polishing welded seams after rough grinding polishing bearing surfaces and raceways For smoothing and polishing castings and punched or sheared pieces wet sanding of gem stones trimming plastic articles smoothing glass edges Coarse 80 Grit Silicon Carbide Cleaning before welding or soldering and for other deburring smoothing and polishing operations