Storage Cases may have slight 3D printing imperfections and inconsistencies of surface

Bethesda Black stones are mounted on high-quality aluminum blanks

Spring Action Stone Changes - makes stone changes fast and easy

What is the difference between Gritomatic Silicon Carbide and Boride CS-HD

umajiyama namito asagi whetstone 6 x 1 back-in-stock Storage Cases may have slightThe stones were cut from a bench stone, parallel to its original working surface. The stones are custom cut from bench stones sourced from a reliable Japanese seller, then lapped, mounted on high quality aluminum blanks, and laser engraved. All operations are performed in house at Gritomatic. Production run: 10 pcs of 6" + 12 pcs of 4". Japanese name (Kanji): Name breakdown: (Umaji) the Umaji mine (abbreviated form of Umajiyama, without the "yama