Well I've been working on my homemade Star sizer, and got to the point of drilling the lube holes. That job took 1/3 of the time I have invested. Those tiny little bits have to be used in a Dremel tool, no chuck goes that small. I broke four bits so far, and one is still stuck in the die. The other 7 holes are done, but I can't do the final honing until I get that last broken bit removed.
Anybody ever sharpen a bit that is only .039" in diameter?