Joysun backstand surface finish belt is designed for use on stationary, heavy-duty grinding machines for powerful and aggressive sanding and surface finishing applications. They can quickly perform heavy stock removal, fast sanding, deburring, shaping and polishing for all metals, woods, plastics, painted surfaces and fiberglass. They are outstanding when working with contoured workpieces and getting into hard to reach areas. This makes them suitable for processing molds and dies for industrial applications.