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. Featuring micro-fracturing ceramic alumina that exposes sharper grains with use, this Blaze® AVOS® F980 coarse grit, fiber locking, see thru disc is designed for fast cutting of 300 and 400 Series stainless steel, super alloys, titanium and other materials that are difficult to grind. The self-lubricating grinding aid treatment delivers a cool cut and the patented hole design allows a view of the surface while reducing heat by up to 30%. A heavy fiber backing is strong and resists tearing, while the Speed-Lok® arbor mount makes this disc simple to attach and remove without tools.