Ozuku Natural Stone ~10,000 GritAbout the Ozuku This stone is a very fine, hard finishing stone around ~10,000 grit. Simply splash and go, work up a slurry preferably with a Nagura stone, as this stone does not form a slurry quickly. Named for the site of its origin, the Ozuku Japanese Natural Whetstone is a product of its homelands finest honing practices. Although the material used to produce these pieces comes from the same site, its depth means that there can be significant