Mikawa Nagura 1923g and flatten them in our

and flatten them in our workshop

This particular one is middle of the road in terms of friability and cutting speed

between 50-60%

the price has been reduced to 1

We receive the stones from the wholesaler with rough chisel marks on both sides

Mikawa Nagura 1923g and flatten them in ourMikawa 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