DeWalt Jacobs Keyless Chuck 1/2" + SDS Adaptor 700 Series Carbide Jaws Heavy
Mounting spindle is 1/2-20 tpi and fits most of Dewalt 1/2" cordless. DeWalt, XRP,XR. Compatible Dewalt part numbers; 330075-91,330075-45,3375-74,586200-1,N0920054,429662-00 and many more. Jacobs 700 Performance 1/2" Keyless Chuck.