A medium hard 1,000 grit with a dense abrasive clay matrix, resulting in smooth cutting and a fine scratch pattern.
This stone works somewhat slower than other stones on high alloy content stainless steels, but provides excellent cutting on Japanese single bevel.
Ohishi series stones are made by Imanishi in Kyoto for Akifusa. They are formulated to work on a wide variety of steels and knife types; they are harder and denser than the older style 'muddy' synthetic stones, yet softer and more yielding than some of the harder ceramic stones. Ohishi stones are made with 100% Japanese abrasives; a mix of natural and synthetic. They work best if soaked for several hours, despite other sellers claims. These are used regularly by our shops busy sharpening service.