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. Sand tough spots on metals with this BlueFire® F826P coarse grit fiber locking disc. Featuring an innovative self-sharpening zirconia alumina abrasive, this fiber disc makes easy work of beveling, blending, deburring and stock removal on stainless steel, cast iron, titanium and soft metals. Backed with heavy fiber for improved durability and reduced tear risk, this disc is also made with advanced resin bond technology that helps the abrasive grain adhere for a longer life. Use the Speed Change® arbor mount to quickly and easily remove used discs and attach new ones to your right angle grinder or pistol grip air sander.