wizard
Member
I have a PSI Collet chuck and am trying to use it to hold a round blank for a kitless pen. The problem is that my collet chuck doesn't seem to run perfectly true and it is going to be hard working with nib section and threading with tight tolerances on thickness. I use a collet insert that fits tight around the blank. I've tried 3 or 4 different round blanks with the same result. What am I doing incorrectly that would cause this? Is it the collet chuck? Is the Beall chuck more precise with regards to this?....any help or advice would be appreciated. Doc