Premium Diamond Needle Files

For durability and cutting efficiency, nothing beats a diamond file. Our premium quality diamond files consist of American virgin diamonds, galvanically bonded to precision, high strength steel, Swiss made file blanks. Ideal for grinding gold, ceramics, tungsten carbide, glass and hard steels. 5-1/2" long (14cm) overall. All are D126 (150 grit). Always use with water as a lubricant.