Size (mm) / Weight
220x81x65 / 2,892g
Hardness / Fineness: 4+ / 4+
This stone is just about everything one could want from a suita. The stone is firm, but smooth and abrades quickly for its fineness. It engages well with both hardened steel and soft cladding for polishing purposes. Edges are finished in the 8k range. This is suitable as a final sharpening or polishing stone for knives and as a pre-finisher for razors and tools.
It is exceedingly rare to find stones in this size of this quality. This stone is an ideal lifetime investment. There are no problematic lines or su nests to worry about and the stone has an ideal mix of properties that will make it enjoyable for beginners and experienced sharpeners alike. I cannot say enough good things about the function of this stone!
Aesthetics & Other Notes
This suita shows pale blue and brown coloring throughout. The line on the surface is benign and can't be felt during use. The stone is extremely consistent top to bottom. The bottom layer has a thin covering of kawa.
The stone is sealed.
Ohira (大平, Oohira, Ohirayama)
A Western mine famous for Uchigumori and the quality of its suita. Although the mine is still occasionally worked, it is increasingly challenging to find uchigumori and Ohira suita available for export. Reportedly, many togishi are worried about the long term supply of quality uchigumori stones. Due to the premium that comes with Ohira suita and uchigumori, many less scrupulous sellers will attempt to pass off stones from other mines as Ohira.