Try this link. I used this method when I was shooting them. I had great results. Don't forget about the search feature, the "how to" section and the good stuff at the bottom! Good luck!-Jeremy http://www.tradgang.com/tgsmf/index.php?topic=108924.0
Using a 6 inch bench grinder where the wheel is vertical, pull the head (on an arrow) backwards across the wheel perpendicular to the wheel grinding 2 blades at a time - the head is held horizontal and pulled backwards across the wheel. Instead of a "V" the blades are now ground hollow, )(, if you can imagine that the tops of the curved lines touch. When you finish on a flat stone and strop you now create a micro bevel rather than stoning the full edge. The amount of hollow is dictated by the diameter of the grinder. R