Collet Fit Question


Avid destroyer of many materials.
H-M Supporter Gold Member
Sep 14, 2014
I first asked this question in the Bridgeport forum, but in retrospect here probably would have better. How "good" is a collet fit supposed to be? Pictures are here: am I being OCD? I'm trying to chase down .004 4" down. The quill appears to have
.0003 run out. Am trying to figure out what tolerance I can reasonably hold so I don't bang my head on the wall over something unachievable.

As always, TIA
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