Coming Soon - Mikawa Nagura 1191g Mined in Aichi prefecture starting

Mined in Aichi prefecture starting 700 years ago

This particular stone is hard and not as friable as other examples

This particular stone is middle of the road in terms of hardness and friability

The diamond layer is 10mm thick after firing

the performance of the stone for burnishing details is superior without slurry

Coming Soon - Mikawa Nagura 1191g Mined in Aichi prefecture startingMikawa 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