1 x 42-inch Sanding Belts are made with premium open coat aluminum oxide grain. The 1 X 42" sanding belts are a good tool for sharpening and polishing such as film polishing and knife sharpening belts, similar to micron graded film belts. It is commonly used for wood, aluminum, non-ferrous metal, glass, plastic, stone, etc. These belts are durable, Moisture-Resistant & Heat-Resistant. They provide an excellent finishing touch to the surface without any effort. Each 1 x 42-inch sanding belt is ideal for removing paint and stained metal surfaces; or for final sanding of wood finishes.