The Ohishi 1000 grit is a good stone for working a large variety of knives including single bevel, it offers the smooth glide of a muddy stone without wearing quickly or shedding grit everywhere. The scratches left from the mix of natural and synthetic abrasives are relatively shallow and finish easily, for most double bevel knives no medium fine stone is needed before final finishing.
The 6000 grit on reverse side gives a toothy fine finish with it's mix of natural and synthetic abrasives, best results are had with a nagura stone to condition the surface of the finish stone and speed polishing.
Ohishi series stones are made by Imanishi in Kyoto for Akifusa and are formulated to work on a wide variety of steels and knife types, harder and denser than the older style 'muddy' synthetic stones yet softer and more yielding than hard ceramic stones. Ohishi stones are made with 100% Japanese abrasives.