Mark: here's one stand i saw and saved for those Cole vises a while back that might work for a trailer hitch mounting with a little modifying. also here's the drill attachment that i saw with a Cole vise holding it ready to use.
I've passed on a lot of these in the past just like the blacksmith ones, but one day I'm sure i'll have one or two of both if the right ones cross my path in the wild.
Hey Drives,
It would be cool to have that drill attachment as conversation piece, but I'll stick to a electric of air drill.
Looks like I can weld some pieces of square tube stock together and attach the cole vise at the base so I can have the swivel vise benefit. Since it's kind of tall, it may mount onto a standard hitch insert.