Jo-Haku Whetstone for Edge Pro - Gritomatic

Jo-Haku Whetstone for Edge Pro

For Hapstone and Edge Pro knife sharpeners (Edge Pro format)
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Jo-Haku Whetstones are used for fine sharpening on Hapstone or Edge Pro sharpeners. Estimated grit for Jo-Haku is 1000-1500 JIS. Jo-Haku stones are mounted on high quality aluminum blanks.

Jo-Haku Whetstone is mined in Kumamoto/Sage region, in Japan

Jo-Haku stones are universal, and can be used to sharpen knives of any steel.


  • Product size: 160 x 25 x 9 mm (6" x 1" x ⅓")
  • Working surface: 150 x 25 x 6 mm (6" x 1" x ¼")
  • Weight: 100 g (3.5 oz)
  • Abrasive: Lime sandstone
  • Extra materials: Aluminum Blank, 3M PSA

How to use

Jo-Haku Whetstones should be used with water. Soak Jo-Haku in the water for 2 minutes before use.

Jo-Haku stones may have slight natural imperfections.

Jo-Haku stone does not require any preparations.

About Gritomatic

Gritomatic is not just an online shop. This private brand is a collection of high-quality, custom-made sharpening products. Gritomatic offers natural and synthetic stones, empty blanks and leather.

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Questions and answers

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