ATOMA Diamond Whetstone #400, Rough Grit
Size: 8 1/4 inch X 3inch X 1/2 inch (210mmX75mmX13mm)
Weight: 1lb. 3.4oz. It is rough grit, but it is higher than #140, so it is great for lapping sharpening stone for medium grit hone and fine grit hone, and removing lots of steel or iron from the cutlery. When the sharpening surface is worn out, it is able to change replacement sheet.
****After used the Atoma Diamond whetstone, we should rinse slurry well, and dry it. It prevents the rust of the Atoma Diamond whetstone*****