Faithfull FAIDWQUAD Diamond Sharpening Stone WIth Base. 4 Sides: Extra Coarse to



A four-sided Diamond sharpening stone supplied with a worksafe, surface gripping base for quick, easy and effortless sharpening of any blade Diamond stones will sharpen steel, HSS and Tungsten Carbide tools Can also be used to abrade Glass, Ceramic Tiles and Porcelain BLUE - 200 Grit Extra Coarse YELLOW - 300 Grit Coarse GREEN - 400 Grit Medium RED - 600 Grit Fine