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Also known as a wedge grind. A second, seperate grind using a smaller grinding wheel is not done along the edge as it is done for the traditional full hollow grind.

Since there is such a great variation in coticules and escher/thuringan/german water razor hones and japanese naturals then it would not be surprising to see variation in the chinese 12k stones....

The DMT XXC (125 grit) would probably be the best to do a majority of the work or you can start with a coarse piece of wet/dry sandpaper.
In both cases, once the grid lines are gone from the coarse...