Thread: Nagura Honing - Video tutorial

Originally Posted by Slur

I cannot understand how these white stones work.
I think the honing was made by the base stone.

You are correct. The honing is done by the base stone. Rubbing the nagura (A.K.A. slurry stone) on the base stone distributes more abrasive in the vehicle (water) for faster cutting of the metal. Controlling the thickness of the slurry by creating a thicker or thinner slurry adjusts the level of cutting power. A method learned with experience by trial and error.