Miyagoshi Seito Ltd. in Kyoto manufactures and sells artificial grindstones by the vitrified manufacturing method.

blog Fixing a knife with a nicked and rusty 2

May 6th, 2020 He was sharpening the knife with rough stone (#220 Rouran) for 20 minutes. The chip was disappeared. Then he sharpened it smoothly with medium stone (#400 Turugi) and finishing stone (#4000 Ebisu). Total sharpening time was about 30 minutes.