Boride Recommended Stone Set for KME

For KME and Hapstone knife sharpeners (KME format)
$83.00 USD 📊 Grit Chart


Boride Stone Set is used for sharpening knives on KME or Hapstone knife sharpeners. All stones are made of aluminum oxide.

Boride stones should be used with one of these lubricants:

  • Water
  • Soapy water
  • Boride Bori-Lube
  • Water solution of dipropylene glycol
  • WD-40 (for experienced users only)
  • Refined olive oil (for experienced users only)
  • Oleic aсid (for experienced users only)

In case of using the water as a lubricant, soak the stone in water for 1-2 minutes. In case of using the oil, put a small amount (1-2 drops) of honing oil on the stone’s surface and spread it evenly over the stone with a finger. If the stone absorbs the honing oil, use a larger amount of oil.


5 stones
RUBY 150
AM-K 220
T2 400
Golden Star 800
PC 1200
Aluminum Oxide
For medium and soft steels (up to 59 hRC)

About Boride

BORIDE Engineered Abrasives has developed and manufactured abrasive products for nearly 50 years. Precise process management, fact-based problem solving and extensive material science are important parts of Boride foundation. Stable, good quality, modern production techniques and good service make Boride one of the most attractive brands in the sharpening stone market. Boride stones were originally designed for the polishing of dies and molds, but are widely used to sharpen knives on Edge Pro Apex sharpeners.

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Questions and answers

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