Uxcell Hex Magnetic Socket Nut Driver Spanner, 1/4-Inch, 5-Piece Product Name : hex driver bit; material : metal Hex socket size : 6.35mm / 1/4"; hex shank size : 6.35mm/ 1/4" Overall size : 10x 60mm/ 0.4" x 2.4" (d*l); Color : Gray, Silver Tone Weight : 83G Package : 5 x hex driver bits