The Diablo's 5" 50-Grit Fiber Discs are engineered for fast and efficient material removal during surface leveling and heavy stock removal tasks. Featuring a premium aluminum oxide blend, these discs offer extended sanding life while maintaining high productivity. A durable resin bond secures the grit to the backing, ensuring long-lasting use even in demanding applications. The high-performance coating minimizes clogging, optimizing smoothness and productivity. Ideal for use on wood, metal, plastics, and fiberglass, these discs are perfect for surface preparation, polishing, and weld blending. The 4-pack provides a reliable solution for a variety of heavy-duty projects.