Abrasive Files. A comprehensive range of sharpening stones to cover a wide variety of sharpening and honing applications. Most of the shapes and sizes are available in fine, medium and coarse grades. All stones can be used wet or dry to produce sharp cutting edges or to remove burrs. Silicon Carbide: Man-made abrasive with very hard, sharp particles. This makes it ideal for non-ferrous metals, hard surfaces, alloys and cemented carbides. Also used on stone, marble, glass and plastics. A superior abrasive that is able to penetrate and cut quickly with only light pressure being applied. Round Silicon Carbide