ATOMA Diamond 1/4 size Convex Whetstone #1200, (very fine)
Size: 4 1/2 inch X 1 1/2inch X 1 3/4 inch (115mmX35mmX45mm)
It is not flat surface. It is slightly rounded convex surface.
It might be great sharpening stone to sharpen hollow ground shaped surface or sickle shaped blade.
It is 1/4 size ATOMA very fine stone.
It might confuse #1200 and very fine, but ATOMA has #140, #400, #600, and #1200, and #1200 is the finest grit.
It is small size, so it is great to carry outside work for sanding and sharpening.
****After used the Atoma Diamond whetstone, we should rinse slurry well, and dry it. It prevents the rust of the Atoma Diamond whetstone*****