Uxcell a13111800ux1140 10mm Hex Socket Screw Driver Bit Tool with 80mm Long Product Name : hex driver bit; hex socket size : 10mm Hex shank size : 6.35mm/ 1/4"; overall size : 15 x 80mm/ 0.59" x 3.15" (d*l) Color : Gray; material : metal Weight : 98G Package : 1 x hex driver bit