Turkish Oil Stone (Pierre Du Levant) is very rare sharpening stone used for super finish sharpening knives on KME or Hapstone knife sharpeners

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

with slightly rounded edges and a perfectly flat top surface

this is a modern stone

Gritomatic Silicon Carbide 600

chinese bluestone for edge pro Turkish Oil Stone (Pierre DuChinese 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