uxcell 1/2" Male Thread Hex Nut SDS Plus Shank Drill Chuck Adapter Product Name : Drill Chuck Adapter;Thread Diameter : 12.5mm/1/2" Shank Diameter : 10mm/25/64";Hex Size : 17mm/0.7" Total Length : 65mm/ 2.6";Color : Gray Material : Metal;Weight : 47g Package Content : 1 x Drill Chuck Adapter