Oohira Karasu Lv 4 (a843)

Very Rare and Big Ohira Karasu 

Super fine but medium in Hardness. Very fast stone making black swarf very fast !  Without any toxic inclusions or lines 

That kind of stones i don't see that often ! :) 

Make super fine and beautiful finish 

Sides is very uniform without any lines or cracks. 

I can make very uniform finish with it without Nagura but with Nagura i bet it is much better :) 

Collector Grade