Re: Really Teeny Tiny Cutters

> You can buy ball end mills down to .005" at most mold supply shops or from MSC
> (page 486). I have never used anything smaller
> than .060 but I imagine you would have to have infinite patience to keep from
> breaking an .005 endmill.

A company I work with uses triangular cross-section (if you can believe
that!) shaped .003" cutters to engrave very fine detail on brass cylinders.
This is done in a high speed engraving machine. Pretty amazing stuff.