The Diablo's 7" 50-grit fiber discs are designed for heavy stock removal and surface leveling, featuring a premium aluminum oxide blend for fast, efficient material removal on metal surfaces. The high-performance coating reduces pitch build-up and clogging, allowing for extended sanding life and increased productivity. With a strong resin bond, these discs provide superior grit-to-backing durability, making them ideal for challenging applications like weld blending, surface prep, and wood material removal. Suitable for use on wood, plastics, and fiberglass as well. A backing pad is required for secure attachment. Available in a convenient 2-pack.