Uxcell 65mm Length Magnetic 5.5mm Hex Socket Nut Setters Driver Bits, 10-Piece Product Name : hex driver bit; material : chrome-vanadium Hex socket size : 5.5mm/ 7/64"; hex shank size : 6.35mm/ 1/4" Overall size : 13 x 65mm/ 0.51" x 2.5" (d*l); Color : Gray Weight : 296G Package : 10 x hex driver bits