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 percent. 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.