Milwaukee SHOCKWAVE Impact Duty 1/4 in. Hex Shank Socket Adapter Set (3-Piece) 48-32-5033 - The Home Depot
Core Drill Bit Adapter 5/8"-11 UNC Thread Male to 1/2" Shank Diamond Power | eBay
Wera Tools 042768 1/2" Square to 5/16" Hex Adaptor with Quick-Release Chuck
8 Pcs Drill Bit Adapter Impact Grade Socket Adapter Set Hex Shank Drill Nut Driver Bit Set Sizes 1/4", 3/8", 1/2-Inch for Screwdriver, Cordless Drill, Power Drill - - Amazon.com