I've looked all over the web, can't seem to find what I need. I have to make about 200 hex nuts from 11/32" steel hex (.156 thick, non-standard) and plasn to use the 5C collet chuck. Does anyone happen to have a good used 11/32 hex 5C collet they would be willing to sell me ? Every where I look, they come only in 1/16" increments.