Make your knives razor-sharp with the Chef's Choice Knife Sharpener CC4623. The knife sharpener is suitable for European and Japanese knives, with a smooth or serrated edge. The sharpener has 3 sharpening phases. In the first 2 phases, you shape the edge. In phase 3, you polish the blade. That way, you'll always have the right sharpening angle and finish. This means you can also use this knife sharpener for the daily maintenance of your kitchen knives.