Ginsco 50PCS 1/1.5/2/2.5/3mm HSS Shank High Speed Steel Drill Bit Set Tools Titanium For Wood Plastic and Aluminum Copper Steel Includes sizes1/1.5/2/2.5/3mm Hss Drill Bit Set For Wood, Plastic And Aluminum Suitable for engineers, craft and hobby worker to wood and metal workers Ideal For DIY, Home And General Building/Engineering Using Titanium coating hex shank for use with all cordless screwdrivers drills and screw guns.