Hapstone Start CBN

Hapstone Start CBN sharpening stones are used for sharpening knives using Hapstone sharpeners. CBN (Cubic Boron Nitride) is the second-hardest material after diamond.

CBN's qualities include its high levels of high hardness, strength, abrasion resistance, and thermal and chemical resistance. These characteristics exceed the values of synthetic diamonds and conventional abrasives such as silicon carbide and aluminum oxide. In particular, CBN's high thermal stability and chemical resistance make it suitable for sharpening in conditions where synthetic diamonds are not normally employed.

CBN offers excellent performance in sharpening knives of any steel. Due to its high resistance specs, CBN can be used dry without lubricant. This makes CBN the cleanest of the available sharpening stones.

CBN stones use a plating alloy for high strength and low wear rates. CBN stones consist of a 3 mm thick metal plate containing CBN.

• 100 JIS grit
  
• 220 JIS grit
  
• 400 JIS grit
  
• 800 JIS grit
  
• 1200 JIS grit