Sep 03, 2009· I would definitely pick up a used knee mill if I was able too, but the best type of benchtop mill you are going to find is a Rongfu RF 45 type mill with a box column. Along with having a box column they have a very large work area. Rongfu does make them, but Lathemasters makes a nice clone, along with other importers (aka, grizzly, enco, etc).