I think my whetstone has smoothed over by constant use at work, is there a way to repair it or should I just go buy another?

  • 2
    What kind of whetstone is this - oilstone, ceramic waterstone, soft synthetic waterstone, natural waterstone? May 1, 2018 at 20:39
  • a photo would be helpful
    – Cos Callis
    May 1, 2018 at 20:55
  • I believe it is a natural whetstone, would a flattening stone help at all?
    – Jade So
    May 1, 2018 at 22:40
  • Picture, please? Is it circular, cylindrical, cuboid? What material is it made of?
    – Fabby
    May 2, 2018 at 20:12
  • 2
    A waterstone it is then ... most of them should rarely get clogged as badly as you describe... and yes, in most cases a flattening stone will be effective on these. May 3, 2018 at 21:06

1 Answer 1


Use a nagura flattening stone to remove as much material as required.

  • Anything flat and abrasive should work. I am using some flattened clinker bricks to flatten whetstones for sharpening woodworking tools, but a sheet of sandpaper on a piece of glass also works. Probably even a piece of concrete... Jul 28, 2020 at 12:49

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