Bench StoneMade from ultra hard alumina ceramic material Fine grit bench stone is used like a traditional sharpening stone but does not require oil or water Flat surface is ideal for sharpening woodworking tools and all types of knives and can be easily cleaned with household cleanser, a scouring pad and water Its broad, flat surface is ideal for sharpening woodworking tools and all types of knives and can be easily cleaned with household cleanser, a scouring