Chef’s Choice Diamond Hone Angle Select Model 1520 is the world’s most versatile sharpener designed to sharpen Asian, European and American style knives. It is engineered to provide astonishingly sharp edges using highly precise knife guides that automatically position the knife. The multi-stage sharpening system features 100% diamond abrasives and patented flexible stropping polishing discs that create a gothic arch edge structure recognized for incredible sharpness and durability. This advanced electric sharpener can restore and recreate both a 20 degree edge for European and American style knives and a 15 degree edge for Asian style knives. It will quickly sharpen fine edge or serrated blades; Santuko and traditional Japanese style single bevel edges including thicker Deba style blades; as well as sports knives, pocket knives and serrated edges.