Faster, simpler and more efficient than traditional sharpening rods and stones, the Quintum rod is perfect for sharpening and honing your knives in 5 stages. Using 'Diamonds Cams' - a patented system - the rod can be used to completely sharpen worn blades. 4 steps are then required to finely sharpen on the ridges of the rod: 2 sides are diamond-coated and 2 sides are hard chrome, each having its own precise sharpening angle, provided by the angle of the handle.