The most heavy duty of coated abrasive discs, full resin bond on vulcanized (cotton fibers treated under intense pressure and heat) fiber backing. Designed for applications ranging from heavy stock removal to surface blending. Used with back up pads on portable angle grinders. Grind concrete, marble, granite and other natural stone with ease using this FastCut™ coarse grit fiber disc. The silicon carbide abrasive is sharp to penetrate quickly and eliminate typical coatings, including adhesives, paints, acrylics and mastics. The rigid fiber backing helps grind your work surface, while specially engineered cooling ridges decrease loading and increase the life of the disc. Attach this disc to your right angle grinder to perform difficult grinding at more comfortable lower angles.