It is a slightly hard whetstone with a fine-grained sharpening fluid

■Size: Total length 185mm

The third generation obtained a patent for the tool holder

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The cutting edge is made of Yasugi Hagane Ginsan

"NAKAYAMA", Tennen Toishi (Japanese Natural Whetstone). Ground layer "TOMAE" 849g Usuba It is a slightly hard"NAKAYAMA", Tennen Toishi (Japanese Natural Whetstone). Ground layer "TOMAE" 849g Size: Original size: Length approx. 136. 4mm x Width approx. 74mm x Thickness approx. 36. 7mm Weight: 849g Use: Finishing blades Origin: Kyoto Features: This is a natural whetstone from Nakayama, considered the pinnacle of natural whetstones. It is characterized by its beautiful, distinctive red color. Among the Akapin whetstones, it has a slightly harder sharpening