Coming Soon - Mikawa Nagura 1191g The diamond layer is 10mm

The diamond layer is 10mm thick after firing

Consider soaking the stone prior to use

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

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

Coming Soon - Mikawa Nagura 1191g The diamond layer is 10mmMikawa 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