Naniwa Chosera recommended stones set (4+1)

Chosera sharpening stones are used for sharpening knives on Hapstone knife sharpeners. Chosera is a high-end series from Naniwa made of aluminum oxide with the magnesia binder. The magnesia binder gives Chosera excellent sharpening quality and performance, and high wear resistance. We offer  Chosera sets: The recommended set consisting of 4 Chosera stones (from 400 to 10K grit) plus complimentary silicon carbide 120 grit Hapstone stones , and The full Chosera set of all 8 grits (without SiC 120 stone). All Chosera stones are 6 mm thick and are mounted on high-quality aluminum blanks. Chosera series stones are universal and can be used to sharpen knives of any steel including high carbon, vanadium, and chromium steels. Chosera stones are preliminarily lapped and do not require lapping after purchase. Chosera should be used with water as a lubricant. Do not soak Chosera stones in water for more than a few seconds. Just splash, or use a water spray. Never store stones in water. Never dry