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?

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    What kind of whetstone is this - oilstone, ceramic waterstone, soft synthetic waterstone, natural waterstone? – rackandboneman May 1 '18 at 20:39
  • a photo would be helpful – Cos Callis May 1 '18 at 20:55
  • I believe it is a natural whetstone, would a flattening stone help at all? – Jade So May 1 '18 at 22:40
  • Picture, please? Is it circular, cylindrical, cuboid? What material is it made of? – Fabby May 2 '18 at 20:12
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    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. – rackandboneman May 3 '18 at 21:06

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

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  • 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... – Matthias Brandl Jul 28 at 12:49

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