Even out loose weld joints and other surface irregularities with a pass from this Bear-Tex Vortex Rapid Prep AO coarse grit non-woven back-up pad disc. This disc uses a patented Vortex agglomerated aluminum oxide grain to combine the exceptional cutting power of a coarse grit with the equally exceptional finish of a fine-grit polisher. Use this disc to prep, blend and clean stainless steel, high-carbon tool steel alloys, soft metals, such as aluminum, and hard surfaces, including titanium.