On Mon, 12 Oct 2015 01:51:26 +0000 (UTC), John Doe
wrote:

I need to slice a piece off of a 1 1/4 inch socket. Also need to cut a slot
into that socket.

Sure would be nice to have a rotary tool add-on...

1. That holds the rotary tool stationary.

2. Slowly and steadily moves or spins the work into the rotary tool cut off
wheel (or other attachment).
It's called a lathe and a toolpost bracket to hold the rotary tool. -
Poor man's tool post grinder.