Oohira Karasu Lv 4,5 (a1863)

Very Rare and Big Ohira Karasu 

Super fine and hard. Very fast stone making black swarf very fast !  Without any toxic inclusions or lines 

That kind of stones i don't see that often ! :) Do not scratch softer steel on cladded knives 

Make super fine mirror like 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 :) 

Best with Nagura

Can also be used on razors !  

Collector Grade