Electroplated with monocrystalline diamond. Double-sided with 400 grit (coarse) and 1000 grit (fine) for quick, easy sharpening of blades. Features ABS plastic base with non-slip pads for use on most surfaces, and a sharpening surface which remains flat. Suitable for use dry or with water as a lubricant. Ideal for general purpose sharpening of chisels, scissors, knives, plane blades, cutting blades, wood chisels, plane irons and router bits. Can also be used to sharpen carbon steel, HSS and tungsten carbide tools, as well as used to abrade glass, porcelain and ceramic tiles. Includes credit card-sized sharpener and storage pouch. 400 & 1000 Diamond Grit Double-Sided Includes Sharpener 400 & 1000 Diamond Grit Double-Sided Includes Sharpener