Smith's 3-in-1 sharpener can handle all of your sharpening needs. It features pre-aligned carbide blades, which are reversible and replaceable, for quick edge setting capabilities. The fine 750-grit interrupted surface diamond stone provides a quick razor sharp edge on any knife or tool. A pair of specially shaped teardrop ceramic rods provide multi-use sharpening capabilities, everything from standard to serrated edges along with hooks and tools. The protective storage lid also serves as a hand guard, and the ceramic rods fit securely into a compartment in the bottom of the base for safe and easy storage.