3 Piece high speed steel step drill set

SMOOTH, CLEAN CUTS: This 3 piece HSS drill set is made from drop forged, high speed steel with a titanium coating to provide faster, smoother and cleaner cuts. DURABLE: The bits are ideal for drilling through aluminium, brass, copper and mild steel to obtain the proper depth. HEX SHANK INCLUDED: The set includes a 6mm (1/4") quick change hex shank and 3 useful drill bit sizes and is provided with a handy storage pouch.