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. Get a fast, cool-cutting grind with the next generation ceramic alumina abrasive on the Red Heat® F981 coarse grit fiber locking disc. Delivering superior performance for your beveling, blending, deburring and stock removal jobs, this disc uses advanced resin bond technology to maximize grain adhesion and disc life. Fiber backing comes through with a strong, tear-resistant foundation. Increase your productivity with the Speed Change® arbor mount, which makes disc changes quick and easy with no tools required.