Glass Stone - 4000 Grit

Shapton glass stones are known for their exceptional quality, durability, and ease of use. Made with finely graded ceramic cutting media that requires less flattening and lasts 4-5 times longer than most water stones.
 
Each stone is composed of a 5mm tempered glass backing plate fused to a 5mm thick stone. The abrasives are extremely uniform, meaning the abrasive encountered with the first pass of a blade will be the same as the 5000th pass.