Flatness tolerance: <0

Although Washita is the most well-known among vintage natural stones

Graphene when suspended in a lubricant and applied to a surface will burnish itself to that surface

Never dry Rika stones near heat

Reliable clamping for stones of imperfect shape

chinese bluestone for edge pro Flatness tolerance: <0Chinese Bluestones are used for finish sharpening knives using Hapstone or Edge Pro knife sharpener. Estimated grit for Bluestone is approximately 5000 JIS. Bluestones are available in 6 mm thickness, and are mounted on high quality aluminum blanks. Chinese Bluestones stones are universal, and can be used to sharpen knives of any steel. May have slight natural imperfections; this is not a defect. How to use Chinese Bluestone is preliminary lapped and