The X431 Standard for metal delivers excellent finishing results when roughing edges and weld seams, as well as on coarsely ground metal surfaces. Its abrasive surface, made of high-quality zirconium oxide-reinforced semi-precious corundum grain, is robust, wear-resistant, and ensures a uniform surface finish. The sturdy backing material, X-fabric, provides work stability for clean and consistent results. The full synthetic resin bonding of the abrasive grains guarantees wear resistance even under tough conditions. The backing plate is available in both angled and straight designs, and is made from fiberglass as well as plastic.