OZUKU

INTERPRETATION OF THE STONE

A very hard, fine fast cutting stone producing an almost black slurry. 
Very good cutting and polishing power in the 8k-10k range producing a very
fine polished edge suitable for fine woodworking tools, straight razors, 
kamisori and single bevel knives. 

Tested on kanna, (Japanese woodworking planes)of blue 1, blue super, white 1 and Togo Reigo, this stone work very good across all steel, and with its hardness and fine finish this is an excellent stone to maintain Ura on both Japanese woodworking tools and single bevel knives.

For edge sharpening this stone has a very smooth fine feeling across the entire stone that gives an ultra fine edge with fine tooth.
Having also testing this stone on single bevel knives, I would recommend this stone to only very experienced users of natural stones if wanting to sharpen the entire Kiriha or wide bevel. 
Due to the excellent cutting speed and fineness of the stone it was possible, used with very little water that will quickly produce a black slurry. 

Starting the stone with a surface from a 600 Atoma plate washing of all mud. As well I tested this stone with Nagura made from Nakayama both hard and soft and found this an excellent aid in working with this stone 

For those interested in exploring hard Japanese natural stones this is a very pure clean stone that gives good feedback across most steels and cladding types when used properly.