I have made a few. Check out the boughten one, and try to duplicate it. I use a die grinder and a cut off wheel to grind. I will also come behind with the dremal tool and finish it off with it. They do a good job. If You are using a older bit, it is been sharpened already a few times, I also grind the inside of the flutes a little.It makes it easier to grind the point, and get a good edge. Be sure to follow the origional shape of the bit, just grind it so the space between the flukes isnt as thick.
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Last edited by dutchman 46; 03-17-2010 at 04:41 AM.