Amtech F0790 High Speed Steel Step Drill Bit Set, Cone Cutter (3 Piece)

SMOOTH, CLEAN CUTS: This 3 piece large 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 large drill bit sizes and is provided with a handy storage pouch SMOOTH OPERATION: Engineered to deliver consistent performance DIY & TRADE USE: Reliable choice for both professionals and home projects, Weight: 0.6172943336 pounds, Manufacturer: DK Tools