Unknown Kiita Awasedo Fine Grit Japanese Natural Sharpening Stone 1lb. 12oz. (790g)
***The stone is removable from the wooden block, the weight of the whetstone is not included the wooden block***
It is used old stone, and it looks the former owner had used oil to sharpen, so it has remained the oil somehow.
#4000 to #6000 for medium range in the fine grit for high carbon blade
It looks it is not too hard and not too soft, and it is not finest grit in the fine grit stone, but it is fast cut and it is mid-range in the fine grit stone.
It comes with an wooden block.
It raises very good amount of black slurry quickly.
I felt it is fast cut stone.
It looks that it does not need tomo nagura or the device to produce the slurry (worn Diamond lapping stone).
(Scale; 1 to 10, 1-3 is very soft muddy rough grit whetstone 3-6 is soft medium grit whetstone, 6-8 is hard medium grit whetstone; 8-10 is fine grit whetstone)
It makes my blue II steel Hon kasumi blade knife Hagane became frosted silver color, and Hagane became from frosted silver color to semi-mirror finish.
(Scale; 1 to 10, 1-3 give deep scratch marks to the steel, 3-5 is delete the 1-3 scratches, 5-8 makes 3the steel cloudy, 8-10 makes the steel semi-mirror finish or mirror finish)
Natural whetstone has wider capacity than artificial whetstone, and actually725, we do not know until sharpen blade on the hone for a while. Because artificial whetstone molecules do not break down to smaller sizes, but Natural whetstone molecules are possible to break down to smaller sizes, and those molecules are mixed with sharpened steel molecules, and make Jigane as suitable Jigane color, and Hagane as suitable Hagane color. It is natural mystics.