Naniwa Economy sharpening stones are used for sharpening knives on Hapstone or Edge Pro knife sharpeners. Naniwa Economy stones are made of aluminum oxide. All stones are 5-6 mm thick and are mounted on high-quality aluminum blanks.
Economy series is entry-level line of sharpening stones by Naniwa. It utilizes relatively soft bonding to get a high sharpening performance. Economy stones can be used to sharpen knives made of soft or medium hard steels.
Stones are preliminarily lapped and do not require lapping after purchase.
Economy series should be used with water as a lubricant. Soak a stone in the water for 5 minutes before use. Never store stones in water. Never dry stones near heat.
If you have a question regarding this product, please feel free to ask.