Naniwa Diamond Pro Stone, 800 grit

These stones feature a 1mm thick resin-bound diamond matrix layer bonded to a metal plate. Over dimensions: 210mm x 75mm x 16mm. Like most diamond stones, these cut fast and wear slowly, but since the layer of diamonds is bound in a matrix and not just deposited in a thin layer on the surface as with Atoma and DMT plates, they should last longer since as you use them they will shed worn surface material, exposing fresh diamond grit.

Diamond stones are great for sharpening knife blades made from very hard "super steels" which resist abrasion by normal water stones.

These are meant to be used wet. They come with a dressing stone to keep the diamond layer clean and working properly. Soak the dressing stone prior to use.