Our flexible diamond  Sanding Belt for expandable drum wheel is suitable for wet grinding of various materials, including stone, glass, ceramic and other hard materials, suitable for shaping and polishing internal cuts. This expandable rubber drum is ideal for grinding with silicon carbide sanding belts, resin bonded diamond sanding belt or diamond abrasive belts customer cut and smooth the material is excellent wheel.Ideal for shaping and polishing internal cutouts and flat edges with hand held or stationary machines.