X573 Best for Metal for a top-quality finish on metal surfaces. The X573 Best for Metal sanding sleeve achieves a premium finish on metal surfaces. The high-quality zirconia alumina grains remove material with utmost precision and deliver impressive surface results. Additionally, the extremely robust XY fabric ensures durability and consistently high performance even under the toughest conditions. The full synthetic resin bond of the sanding grains on the XY fabric guarantees optimal sanding behavior. This product is used for deburring, sanding, and preparing welding work on unalloyed steel, construction steel, non-ferrous metals, aluminum, and cast iron. It is also ideal for removing discoloration, paint, deposits, and surface imperfections.