this is a modern stone

Ruby Ceramic stones should be used with oil as a lubricant (oleic acid

Gritomatic Silicon Carbide 600

Heavy-duty material

with slightly rounded edges and a perfectly flat top surface

chinese bluestone for edge pro this is a modern stoneChinese 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