Oomura Aratoishi Coarse Natural Stone

Oomura coarse natural sand stone from Wakayama, its hard to grade natural stones the same as synthetic stones but it is essentially a shallow cutting 220-320 stone. It cuts more aggressively with a little wet mud than with just water which can glaze the surface a little making for shallower scratches.

a stone that has been used for a long time in Japan and largely replaced with synthetic stones which cut modern steels especially hard stainless steels more reliably, synthetic 220 scratches look similar but cut deeper and more reliably on stainless steel of course.

A great stone for those looking for all natural stone progressions and for those looking for the very traditional stones on old style Japanese carbon steels. 

approx 2000 grams 220x60x70mm