uxcell Socket Adapter Adaptor Set 1/4" Hex Shank to 1/2" Impact Driver/Drill Product Name : Socket Adapter;Material : Chrome Vanadium Steel Hex Socket Size : 12.5mm / 1/2";Hex Shank Size : 6.3mm/ 1/4" Overall Size : 12.5 x 51mm/ 0.5" x 2" (D*L);Color : Gray Weight : 34g Package : 1 x Socket Adapter