I have several tap wrenches, but my favourite one is just a gnats hair too long for the swing of my lathe. it hits the bed. I've had it since I was an apprentice and don't want to shorten it. So I made a mini one. Probably a bit more style over substance, but it works just fine.
All the edges and the knurling have been sanded down and softened, so it's comfortable to use.