Ideal for coarse grit blending, deburring and stock removal, the Blaze R980P coarse grit center mount fiberglass heavy duty flat flap disc performs with ease and outlasts the competition. This Type 27 disc features a cutting-edge ceramic alumina abrasive grain that effortlessly grinds through tough materials, including cobalt, chrome and titanium, and lasts up to 200 percent longer than similar flap discs. Cut fast without sacrificing comfort as this disc's high-density jumbo flaps absorb vibrations. Made of durable, Y-weight polyester, the flaps have super-size grinding aids to resist frays, improve grain retention and enable longer disc life.