Hapstone Start Diamond stones are designed for use in Hapstone sharpening systems and are excellent for sharpening knives of all steels.

The Hapstone Start Diamond sharpening stone consists of a 152x25mm, 2mm thick CBN plate which is glued onto a 160mm, 3mm thick aluminum blank with beveled ends for a secure fit.

Diamond Plate consists of a diamond-bearing nickel plate mounted to a high-quality aluminum blank with laser engraving. Electroplated diamond provides rapid metal removal. Work surface size 150x25x3mm.

Hapstone Diamond Plates are available in five grit variations. 

  • 80 JIS grit
  • 150 JIS grit
  • 220 JIS grit
  • 500 JIS grit
  • 1000 JIS grit


    • How to use

    Hapstone Diamond Plates are recommended to be used with water as a lubricant for the best feedback. Clean or rinse after use, and store in a dry place in between use to prevent any oxidation on the metal matrix.

    Diamond Plates are ferromagnetic and should not be used on magnet-based knife sharpeners.


    For refinishing, we recommend using
    The pre-finish is a semi-synthetic Hapstone 4000.
    The finish is Hapstone suspension 9, 6, 3, 1 µm.