A comprehensive 102 piece set of screwdriver bits, including Phillips, Flat, PzDrive, Hex and Star* (including standard and tamperproof) profiles, together with a 1/4"D socket adaptor and a 65mm long magnetic bit holder with a quick-chuck end for ease of use. These 1/4" shank bits and magnetic holder are ideal for use with cordless screwdrivers fitted with a quick chuck, cordless drills and bit drivers.