Description
Fine Diamond Needle File Set These Diamond Needle Files offer excellent material removal as a result of the unique process that bonds the 2-1/2" (64mm) long diamond surface. Engineered to deliver performance on ultra-hard materials unequaled by any other file. Carbide, hardened steel, exotic metals, ceramics, and glass are no match for these precision files. Overall length is 5-1/2" (140mm). Fine grit (170/220). Set contains one of each equalling, half-round, round, square, and three-square.