Nakayama Kiita Koppa Japanese Natural Whetstone

This exceptional Japanese whetstone was selected by us and imported directly from Japan, sealed with clear lacquer on back and sides, and thoroughly tested. Details are provided below.

Hardness: 4.7
Nakayama is one of the original Honyama Mines, along with Shobudani. Nakayama are some of the most highly sought after stones worldwide and for great reason. Nakayama have been used throughout history for a wide variety of tasks and applications including razors, knives, tools and swords. This Nakayama was mined around the 1970's when mining started to decrease. Nakayama are known for being extremely grit rich, hard, and composed of highly abrasive, yet fine particles. For this reason, they are highly effective in cutting the hard steel, which makes them amazing for razors. Hard Kiita with vivid, bright yellow base. the black patterns on the side are harmless and just color. sometimes found in Okudo/Nakayama Tomae. Fast cutting Kiita, perfect for all applications and very versatile. Extremely hard Kiita koppa with mirror polishing capabilities. Great for all blades and highly versatile stone depending on how it's used. Although it's quite hard, it's also straightforward and relatively easy to use.