Agile-shop Black Keyless Adapter for Power Impact Driver 1/4" Mini Drill Chucks Keyless Drill Bit Chuck Adapter Converter Hex Shank Power Tool Quick Change. 1/4" Inch Keyless Drill Bit Chuck Quick Change Adapter Converter Hex Shank Keyless Chuck Adaptor 1/4" Hex Shank To Conventional Or Micro-Size Drill Bit 1/4-Inch Shank Keyless Chuck Conversion Tool Use this chuck to convert any cordless screwdriver or impact driver into a drill or a grinder.