A while back I watched a video by Joe Pieczynski on pressure turning. I
immediately thought, "Now that's something I'll never use."

https://www.youtube.com/watch?v=0DrI5B4hui0

Yesterday I bought some great price carbide blades for my 12" radial arm
saw. They didn't fit. No big deal. I have a lathe or three. I'll just turn
one of the arbors to fit. The little lathe is still all apart for the
duration. The middle weight is pretty much dedicated to small rod stock
collet operations so I walked over to the 1 ton 1440 and grimaced. I could
have used a couple parallels behind the stock, and shimmed it on the 3 jaw,
or I could have swapped out for the 4 jaw and dial it in, but what a pain.

Instead I used a live center to get concentric, and pressure turned it up
against the front of the jaws of the 3 jaw. I wasn't sure if my Chinesium
lathe would be up to the task, but it turned out to be dead easy.

Here it is. https://youtu.be/yMwaUokwDaY