Mikawa Nagura 1559g and flatten them in our

and flatten them in our workshop

or a brighter polish with a glazed surface

Can be mixed with alcohol to create a diamond spray for stropping

This particular one is a very light cream colour all the way with minimal orange streaks and black dots

This example is hard and fast cutting

Mikawa Nagura 1559g 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