High-performance flap discs are widely used by metal fabricators, auto body repairmen, welders, farmers and equipment repair shops, contractors, pipe fitters, mechanics and many more. Flap discs grind and finish in one easy step. There are fewer changeovers because there is no need to switch from a Type 27 wheel to a resin fiber disc. Flap discs also last up to 15 times longer than resin fiber discs. Performance is improved and downtime is decreased, saving you time and money. Flap discs are constructed with thick layers of aluminum oxide or zirconium abrasive cloth, mounted on a rugged, lightweight backing plate. The backing plate dissipates heat quickly, won’t crack and does not require a backing pad. Flap discs also resharpen themselves, providing a consistent finish when cutting and grinding, never dropping off in performance. New abrasive grain is continually exposed as the layered abrasive flaps slowly wear down, providing rapid stock removal and consistent finishing. Its angled face suits the natural working angle of a grinder. This allows for maximum abrasive cloth contact with the work surface. Stock is removed more quickly, while a better surface finish is achieved.