In article ,
Randy wrote:

I'm facing the ends of some 303 SS TGP and wandering if having jaws
made from polturethane would grip the stock well enough.
....
I might give aluminum a try since I have it on hand. I was thinking
plastic because these are 24" long 3/4" dia. and I only like to open
the chuck just enough to slide them in/out. 200 pcs BTW.

Sounds like a good job for a collet.

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Cats, coffee, chocolate...vices to live by