Mikawa Nagura 1165g or using a diamond plate

or using a diamond plate to slurry the stone

We have not noticed the release of any gritty particles in use

it may also be useful for users sharpening low alloys steels due to high cutting speed

Weight: 1923g

Mikawa Nagura 1165g or using a diamond plateMikawa Nagura are Tuff stones, a type of igneous rock formed from lithified volcanic ash. Mined in Aichi prefecture starting 700 years ago, they have been used in traditional Japanese sword polishing progressions. The mine has been closed since the 1970s. We receive the stones from the wholesaler with rough chisel marks on both sides, and flatten them in our workshop. Although we have made a good effort to provide a flat surface for usage, we strongly