Ozuku Lv 3,5 (a1563)

Very Rare Ozuku, All ozukus tend to come only hard 

But this one is for knives and tools, very smooth and medium hardness 

Not to hard not to soft, produce very black swarf very easy 

They are very sought after in Japan as Ozukus considered to be amazing stone when it is not super hard and scratchy 

Very rare stone that is super fine, Fines on these like with nakayamas is much higher then they hardness 

Makes amazing finish

Best with Nagura ! 

No toxic lines or inclusions 

Collector grade