For quick and easy tool sharpening, this NEW and EXCLUSIVE Faithfull Ceramic Hybrid Sharpening Stone is double-sided with a 300g coarse diamond grit on one side and a 1200g fine ceramic grit on the reverse - so you can clean off the edge as well as ensure a sharp finish! Designed for general purpose sharpening of knives, scissors, chisels, plane blades, cutting blades, TCT router bits and any tool which requires a sharp edge, working effortlessly on carbon steel, HSS and tungsten carbide tools, as well as abrade glass, ceramic tiles and porcelain too.