Keep knives as sharp as new with this three-stage knife sharpener from Chef's Choice. The three-stage process utilizes ultra-hard diamond abrasives that efficiently sharpen and hone most blades to a 20 angle. Precision angle guides eliminate guesswork from the sharpening process, making it easy for both experienced and novice chefs to get a razor-sharp blade at home. Plus, the rechargeable design and portability means you can take it with you anywhere you need a sharpener.