Famous Ohira Uchigomori sword Grade.
Many of them come with many blackness or rust colors witch is not so good as it tend to be to hard ! And can scratch
Also they tend to come not flattened as the sharpener will choose how to flatten them , flat or convex !
This quality of Uchigomori is super rare !! Very light gray color with lots of range in it !
There is no hard lines in the stone so no need for digging !
Can be used for polishing knives swords and even tools
Need to be flattened
Highly collectable stone !!!
Size: 200mm 70mm 40mm