Very effective in hard to get places, carbide table saw blades, router bits, deburring. many uses include hunting and fishing knives, axes, woodworking tools and carbides. 3/4 x 2 Diamond Pat on a 6 x 3/4 Plastic Handle. Set, 1 each Super Fine Grit (1200), Fine Grit (600), Medium Grit (400), Coarse Grit (250) & Extra Coarse Grit (150) diamond pads.