Here's the way to hone something made of resin, ceramic, glass, plastic, metal, and more--this Diamond Dresser! Measuring 82mm by 50mm, and 1mm thick, this metal plate features a diamond coating on both sides. Half of each side is #80 grit, while the bottom half of one side is #300 grit, and the bottom half of the other side is #600 grit! It's another winner from Argofile Japan!