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 :)
Size: 202 mm 77mm 38mm