with slightly rounded edges and a perfectly flat top surface

Heavy-duty material

Never dry Rika stones near heat

Reliable clamping for stones of imperfect shape

Gritomatic makes additional lapping for Idahone Ultra-Fine and Medium Ceramic stones

chinese bluestone for edge pro with slightly rounded edges andChinese 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