On Wed, 30 May 2018 13:23:47 -0700 (PDT), "
wrote:

On Wednesday, May 30, 2018 at 2:58:19 PM UTC-5, Doug Miller wrote:

4) If you *do* manage both 2) and 3), I think that once you start tightening the clamps, the
gripping mechanism in the tailstock will crush the EMT. Like I said, it's called "thinwall" for a
reason.


I doubt the gripping rings on the tail end of the pipe clamps will grip the EMT. The gripping rings are chromed steel. The EMT is chromed or some kind of gray plating. Its slick. I don't think the rings will grip the slick EMT pipe. So no clamping force. I don't think it will grip enough to even dent the thinwall EMT. It'll just slip.
EMT is NOT chromed, it is electro-zinc plated.