SLUGGER BY FEIN, 1/2 in Capacity, Compatible with 72705961090, Drill Chuck Arbor Adapter - 4NYD2|U19014 - Grainger
Milwaukee® 49-59-0020 Chuck Adapter, 3/4 to 1/2 in Shank, For Use With M18™ FUEL™ 1-1/2 in Magnetic Drill and 3/4 in Weldon Shank Annular Cutter | Dillon Supply
Milwaukee® 48-66-2125 | Hubbard Supply Co.
Chuck Adaptors for Magnetic Drill Units
Champion AC35-1220 Drill Chuck for AC35 - Chuck Only - 1/2" | FisherTools.com