Does williams make a spanner-type-thingy to remove the round slotted nut from the 3/8 and 1/2 ratchets? I'm not going to use a chisel, etc, and can certainly fab something up, but if I can buy something for $5-10 then that's what I want. I've already tried various ways with no luck and dont' want to mar up nice ratchets by hacking on them.