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.