Originally Posted by
bergerud
I think you are on to something Kevin. I have been experimenting with an ultra fine diamond "stone" on old carbide bits while looking under a microscope. The hard part is the tip. It is pretty easy to tune up the main edge. Since very little material needs to be removed, I think you can just rub the bit flat on the stone without worry about the angle. I'll bet one could get away with a few of these tune ups before any serious change in geometry would occur.
I think this certainly deserves some looking into. Maybe some small jig would help. Good one Kevin.