Gatco's DCS Diamond Carbide Knife Sharpener provides lightning fast reshaping of all knife blades, including serrated blades. The twin carbide sharpening blades will restore a sharp cutting edge in three to four strokes. The tapered diamond, serration sharpening rod restores a factory edge to all serrated blades. When not in use, the diamond rod stores in the sharpener handle. The DCS is precision machined from 6061-T6 aircraft aluminum with a knurled handle for a sure grip.