Whetstone, Yasuda Hamono, 1000This whetstone has a #1000 grit level is perfect for general sharpening. This product comes with a non slip base. Yasuda Hamono is a family owned company in Seki City, Japan that produces quality knives. They focus on the research and development of the knives' heat treatment and sharpening in order to provide a durable selection. The city of Seki is world famous in production of the finest knives. The history of these knives are rooted in weapon