Spyderco's state-of-the-art sharpening system and accessories can help give you the edge you need. Before Spyderco ever made knives, we manufactured the tools to keep them sharp. Our full selection of sharpening products now includes everything from small, lightweight stones that are ideal for touch-ups in the field to our versatile Sharpmaker system that takes the mystery out of sharpening virtually any cutting tool—including serrated edges. First we made things sharp... then we made sharp things™.