Mikawa Shiro Nagura 6.5oz. (183g) Japanese Natural Sharpening Stone
Mikawa Shiro Nagura 6.5oz. (183g) Japanese Natural Sharpening Stone
Mikawa Shiro Nagura 6.5oz. (183g) Japanese Natural Sharpening Stone
Mikawa Shiro Nagura 6.5oz. (183g) Japanese Natural Sharpening Stone

Mikawa Shiro Nagura 6.5oz. (183g) Japanese Natural Sharpening Stone

Regular price $95.00 Sale price $68.00 Save $27.00
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Mikawa Shiro Nagura 6.5oz. (183g) Japanese Natural Sharpening Stone

Approximately 95mmx45mmx24-30mm

I am not sure which layer of Mikawa shiro nagura, but it looks medium-high grit.

For razor sharpening, it is used one or two before the process sharpening by finest grit whetstone like Nakayama, Ozuku, Wakasa, etc.