A thou on any decent mill is no problem. Given the teeny tiny endmill the author was using, I suspect they were using a small mill with a very fast spindle. Ma

A thou on any decent mill is no problem. Given the teeny tiny endmill the author was using, I suspect they were using a small mill with a very fast spindle. Maybe something like a Taig or a Sherline. Edit -- I see on another post the author has a Sherline 5400 mini mill.