Idahone Ceramic Stone for KME

For Hapstone and KME knife sharpeners (KME format)
$27.00 USD 📊 Grit Chart



Idahone Ceramic Stones are used for sharpening knives using KME or Hapstone knife sharpener. The stone has an extremely high hardness rating.

Idahone Ceramic scarcely wears over time. Ceramic stones are available in two grits: medium and fine.


  • Working surface: 100 x 25 mm (4" x 1")
  • Weight: 42 g (1.4 oz)
  • Abrasive: Alumina Ceramic

How to use

Idahone Ceramic stones should be used with one of these lubricants:

  • WD-40
  • Refined olive oil
  • Oleic aсid
  • Water

Idahone Ceramic stones do not have any minor defects.

Idahone Ceramic stones do not require any preparations. It is naturally lapped. This is a big advantage because the difficulty of lapping Ceramic is very high.

Q & A

  • Are these stones really original? Why they are not available on the web site of Idahone?

    We buy large ceramic stones directly from Idahone and cut them.

  • What grit do Idahone stones have?

    Grit terminology is not applicable to ceramic sharpening stones. The behavior of ceramic stone depends on its density and how good it was lapped. Our estimation is F400 for Medium grit, F 800 for Fine grit.

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Questions and answers

If you have a question regarding this product, please feel free to ask.