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Well, I knew you knew I knew you knew.... err..... well, I just wanted to point it out... the Norton 220 isn't bad or useless if used for what it was meant for, but it and most other coarse water...

I should have mentioned this earlier but this is a case of using the wrong tool for the wrong job. A splitting axe, maul or wedge is not a fine cutting tool, it's a crude wedge and putting a fine...

The reason is the same for both, the binder strength is designed to release grit when the cutting pressure increases due to dulling of the grit... Unfortunately it is not an exact science but there...

We need to remind ourselves from time to time that Norton hones, Shapton hones and pretty much all modern man made hones were NOT designed for razor sharpening. They are meant for tool sharpening and...

How you rub a 220 grit water stone on a 320 grit diamond plate hone will not matter. The larger 220 grit will reach the base of the 320 grit diamonds and abrade away the Chrome plating that holds the...

Bruno, I think your problem when trying to flatten the 220 grit hone was the fact that it's as coarse or coarser than the DMT you were using. There are warnings about this in the Shapton literature...