The X431 Standard for metal delivers excellent finishing results when grinding edges and weld seams, as well as rough-ground metal surfaces. Its abrasive surface made of high-quality zirconium oxide-reinforced semi-precious corundum grain is durable, wear-resistant, and ensures a uniform surface finish. The robust backing material, X-fabric, provides work stability for clean and consistent results. The full synthetic resin bonding of the abrasive grains ensures wear resistance during heavy use. The backing plate is available in both angled and straight designs, and can be made from either fiberglass or plastic.