Thus, I could proceed. 0.002" at a time!!!
Here's the product fresh off the lathe!
So, at this point, I got the ring. Put it on.
This is how:
I heated it up with the Propane torch, let it slide down the mandrel, tapped it a few times, bingo!!
This is how lazy people polish rings:
That's a piece of foam I shoved the ring on. Then stuffed it into a drill bit. Then held some high-grit sandpaper to the spinning deely.