Sharpening flat edges is relatively easy; trying to match the curve of a gouge requires more skill and a bunch of curved stones. DMT is trying to make it easier to keep a keen edge on your curved tools with their new Diamond Wave.
While it looks like a piece of metal that’s had a bad day, it’s actually a combination of convex and concave surfaces coated with a micronized mono-crystalline diamond coating. The curves vary precisely from a radius of 0.0625″ to 1″, which gives it the ability to sharpen a wide range of curved tools. You can use the Diamond Wave dry or with water.
DMT makes the Diamond Wave in the USA. Available in fine (25-micron/600 mesh) or extra-fine (9-micron/1200-mesh), pricing starts at $47 shipped for either “stone.”
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