Norton Blaze R920 ceramic alumina flap wheels are designed to deliver a smooth, consistent finish with a fast, cool uniform rate of cut. The wheels are ideal for aggressive grinding and precision finishing, blending, deburring, cleaning and producing uniform finishes on tough parts that are manufactured in hard-to-grind materials including superalloys, stainless steel and cobalt. The Norton next generation of sharp, ceramic abrasive grains and advanced grinding aid lubricants provide significantly faster, cooler, burn-free grinding. A flexible but strong heavy cotton backing wears evenly, which delivers chatter-free cutting action, longer life and ensures flexibility for the application while eliminating aggressive sanding action. An advanced, full resin bond system promotes exceptional grain retention, which increases product life.