Mikawa Nagura 1923g This stone is hard and

This stone is hard and not as friable as other examples

It burnishes out grains in the steel nicely

Dimensions: 181mm x 64mm x 40mm

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

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

Mikawa Nagura 1923g This stone is hard andMikawa 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