This professional knife sharpener from Chef's Choice quickly and easily applies an incredibly sharp Trizor edge, from tip to the bolster. The 3-stage 100% diamond abrasive sharpener is designed to sharpen edges that stay sharper longer. The electric knife sharpener features an advanced Bi-Level magnetic guides for easy and fool-proof knife sharpening. The Chef's Choice 110 Sharpener is excellent for the kitchen, household, sports, and pocked knives of the 20 degree class. The knife sharpener sharpens chef knives, bread knives, hunting knives, boning knives, fillet knives, pocket knives, and more. The electric sharpener is recommended for triple-bevel, 20 degree, serrated, non-serrated, and single-sided edges.