The versatile Merit® AO coarse grit cloth PSA disc is a great tool for blending and sanding applications involving a random orbital sander. The pressure sensitive adhesive enables easy installation and quick-changes, and the X-weight cotton backing enhances longevity while retaining flexibility. This disc features an aluminum oxide abrasive for fast cuts, and a full resin bond provides strength. Select this disc for use on hard or soft woods, carbon steels, aluminum, brass or bronze.