The world's most versatile electric knife sharpener, the new AngleSelect model from Chef's Choice gives you a choice of angles. Sharpen at 15 degrees for Asian knifes such as Shun or at 20 degrees for German and American knives. The choice is yours. Like all Chef's Choice sharpeners, the AngleSelect employs precise guides and magnets to hold your knife at the proper angle, and 100% diamond abrasives to restore or recreate an razor-sharp edge on fine kitchen kinves both straight-edge and serrated, traditional Japanese single-bevel knives and Santokus, even pocket knives and sport knives. 3-year warranty.