Timberline 4015 by Amana RED 600 GRIT DIAMOND HONEDiamond Hones on plastic handles for quick and easy handling. These hones are great for quick sharpening of router bits, shaper cutters, saw blades, chisels and knives. Sharpening surface is 3/4" wide by 2" long with tapered leading edge for difficult-to-reach areas. Excellent for sharpening carbide, high speed steel (HSS) and tool steel.