Kensho Sei series is the culmination of Kensho series, Zan, Kei, Itadaki.
This whetstone is low-temperature fired resinoid stone, which contains Japanese high quality abrasives in it. It is not only leaving enough cushioning to the stone, but also keep the stone surface flat longer. It helps you to know which part of knife is touching the stone when you aim a consistent fine edge sharpening.
Sei #8000 is used for Uraoshi and Itoha for Japanese knives, and this is good to make a fine edge, Koba and Itoha for western chef knives as well. Also, it can be used to regain sharpness quickly, when you don't see any chippings. It is recommended to be used before switching to your finishing natural stone.
Production method: Resinoid