The Chef's Choice 1520 Angle Select Diamond Hone Sharpener is the world’s most versatile sharpener. It's uniquely desinged to sharpen not only European and American knives, but Asian knives too! Now you can restore and recreate both a 15 degree angle on your Asian style knives and a 20 degree angle on your European and American style cutlery. Precision knife guides help you guide the knife through the sharpening system with ease to create a perfect edge. This multi-stage sharpener is one that you can't live without! Comes with a three year manufacturer's warranty.