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

Full CS-HD 9 stones CS-HD 120

Norton Waterstones should be used with water as a lubricant

Hapstone CBN Plates are available in five grit variations

umajiyama namito asagi whetstone 6 x 1 back-in-stock What is the difference betweenThe 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