Judging from the specs of the two in the replies, you need a 3/4" socket, a 1/4" or 3/8" hex to !/4" or 3/8" square drive for the drill. I would buy a midrange 3/8" battery powered drill motor with 18 volt batteries. All of which can be purchased from, Home Depot, Lowes, ACE Hardware, Do It Centers and about a thousand hardware and tool stores.
I like Harbor Freight's BLACK sockets(impact type), they are inexpensive and so far they have been working well for me in auto and MoHo repairs and tire changing. The cheap 18 volt drill motors from HF are so so, I don't know about their upper end drill motors. The ones that come with the LED flashlight for about $18.99 are throw away items for me. I have two of them and if they get dropped or in any way damaged on the road, I just throw them away.
