Drill Chucks and Adapters for Magnetic Drill Units ID 3446-
Milwaukee® 49-59-0020 Chuck Adapter Hanes Supply, Inc
Hougen HMD904 Magnetic Drill With Coolant Bottle Plus 1/2IN Drill Chuck, Adapter and 12002 Rotabroach Cutter Kit - Jim & Slims Tool Supply
Eumtenr HD Chuck HEAVY DUTY 1/2" (13mm) Magnetic Drill Chuck with 3/4" Weldon Shank Adapter Key Type Chuck Converter Tool for Drill Press (B16) - - Amazon.com