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In the late 1970's I developed a sharpening system that would allow me to use Japanese polishing stones. I had seen a demonstration of planing wood to a finished surface by a Japanese woodworker, and had bought one of the 8000 grit polishing stones to see if I could replicate his remarkable results with an American plane.
The stone was so soft, of necessity, that I was cutting divots out of it when I tried sharpening free-hand in my usual way. When I could avoid hacking it up, I was getting the sharpest edges I had ever seen, but it was clear that I needed some kind of a honing guide.
So I tried all the guides then available, and settled on the General #810. Todd Taggart, now of Allied Lutherie, encouraged me to write up a booklet on the system, and I published the first edition of Double Bevel Sharpening in 1995. It's now in its third edition, completely revised and up-dated.
Not long after the first edition was out, the #810 honing guide went out of production, and I decided to see if I could design an improvement on it. The result is the guide in the photographs. I'm now producing the stone box as well, and the booklet, guide, and stone box are all available from Luthiers Mercantile International and The Japan Woodworker. See: My Favorite Links.
As a professional luthier, I need to sharpen my tools quickly, accurately, and to a wide range of angles. And once I had experienced using a tool sharpened on a Japanese polishing stone, there was no going back.
I've been using this system for almost thirty years now, and it's the best one I've seen yet. If you find a better one, tell me about it, and I'll switch [:-)].
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