I hope there arnt any youtube ads on this...

youtube is posting ads on all videos that are "ad-friendly" im seeing if I can stop that by having profanity, sry These stones are intentionally convex to grind and refine the ura(hollow back) of japanese tools. In use the surface will be chipped and additional rough grit will be added for faster cutting. It is used together with a sharpening board(togi-ban(?) that holds the tool to help apply pressure #whetstonemaking #masonry #traditionalcrafts INSTAGRAM:  / j.leon_szesny