Any serious chef knows quality knives are expensive. Keep yours cutting like new for much, much longer with a Tumbler rolling knife sharpener. With our easy-to-use system, anyone can get factory-sharp knives in minutes. Kitchen knife sharpener removes the burr of your knife's edge after the base sharpening. The result? A finer edge for more precise cutting that makes all kitchen tasks easier. Simply choose your angle and use the magnetic knife holder to secure your blade.