Get rid of rust, oxidation and coatings on a variety of metals with the Bear-Tex High Strength A/O medium grit TR (Type III) non-woven quick-change buffing disc. Offering outstanding strength, the disc conforms to the shape of the object. The aluminum oxide grain ensures even cutting and a regular surface finish. This medium-grit disc is appropriate for a wide range of surfaces, including fiberglass/composite, titanium, brass, cast iron and copper, for great versatility.