Atoma Diamond Sharpening Plates can be used in place of Whetstones and Natural Sharpening stones. They do tend to take more material, so it is recommended that you only use light pressure when using them.

The Atoma 400 can be used to replace whetstones from the 320-500 grit range. This grit range can be considered the upper end of “fixing” stones, or the lower end of “sharpening” stones. The Atoma 400 is coarse enough to flatten whetstones, but also fine enough to replace traditional whetstones up to 500-grit.

There is a second use for these diamond plates as they maintain their flat profile and that is to flatten whetstones and Natural sharpening stones. All whetstones and Natural stones will cup over time from use but by using the Atoma plates you can flatten any irregularities after each use. If you want more information have a look at –

Sharpening Japanese Kitchen knives and Woodworking Tools