Not a drill bit, remember this is only a piece of the tool. The piece doesnt come off but does sort swivel a bit. That may give you some SECURity for your next guess.

IronMan's anus.

It's one of those little screwdrivers with the swivel head on the end.

Yea I second the motion !! Good guess !!

Getting very close, but sorry I cannot accept "little screwdriver with a swivel head on the end" this has a very specific name and that is not it.

There are hints in most of the post, well 2 of them for sure. Read closer.

quiet down and guess

Lol