Arato are coarse stones, for early ground work. 

Nakato are medium grit stones, for refining work from the previous stage. 

Awasedo are finishing stones. The term Shiageto may also be used. It is important to remember that the term is job-specific. In other words, a finishing stone for a chef knife may not be a finishing stone for razors. For the most part, these stones are quarried from the Tomae, Namito or Aisa stratum. Generally, they will be layered, hard, fine, and very consistent in structure, grain size, and particle distribution.  

© Keith V Johnson 2014 - 2018