Bavarian Edge 12352-12 Knife Sharpener, As Seen On TVGeneric fixed edge knife sharpeners only sharpen one way. They grind your knives, ultimately destroying the blade. And oftentimes you need to purchase a secondary knife sharpener for your serrated and beveled blades. Bavarian Edge is the innovative knife sharpener that works on all types of knife blades! Two independent spring action made of ultra hard tungsten carbide that flexes and contours to any blade and any angle. Serrated knife or beveled