Hi,

I'm not even talking of making a thin ring to fit around a shaft--
this is for my ball vise, so I just need to cut a channel, albeit one
perfect enough for bearings, into a 9" diameter cylinder of steel.
There is massive support behind it, such that distortion and special
jaws won't even be necessary. Although I am unsure even of how best to
cut the bearing-quality slot, distortion now aside?


thanks!
-Bernard