Exchangeable ATOMA Diamond Whetstone #400, Rough Grit (replacement sheet)
Size: 8 1/4 inch X 3inch X 1/16 inch (210mmX75mmX2mm)
Weight: 5oz. It is rough grit, but it is higher grit 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.
When we replace the replacement sheet, we should clean the surface with thinner that makes easier to clean the residues and removing oil from our hands.
****After used the Atoma Diamond whetstone, we should rinse slurry well, and dry it. It prevents the rust of the Atoma Diamond whetstone*****