This natural Japanese stone is the sharpening stone of choice for the legendary Katana or traditional Samurai Sword. I have become aware by way of personal communication with a razor Honemeister who has an extensive collection of all the Escher, Belgian etc. stones imaginable that the Honyama Awase Toishi is his hone of choice for straight razors. I have some of these stones due to my interest in sushi knives which are "shave ready" in their own way. Do any of the Honemeisters on this forum have any experience honing razors with this lovely stone?