Chef'sChoice AngleSelect Model 4643 Professional Manual Knife Sharpener for Straight Edge and Serrated Knives, in Silver/Black (4643009)

The Chef’s Choice 4643 AngleSelect professional manual sharpener is the ideal solution for both 15 and 20-degree class knives. Using 100 percent diamonds, the hardest natural substance on earth, our patented abrasives sharpen edges faster and easier. This sharpener improves cutting performance by creating 2 distinct facets set at different angles to form a sharp, longer lasting, arch-shaped edge. The first stage sharpens 15 degree straight edge knives, while the second stage sharpens 20 degree straight edge knives. In the final stage, specialized diamond abrasives create a polished finish to both 15 and 20-degree knives. Precision angle control ensures accurate sharpening throughout the entire blade length. This unit is designed to work with both straight-edge and serrated knives.WHY YOU NEED A KNIFE SHARPENER – Over time, a knife’s edge dulls under the stress of cutting. The overall performance can be significantly improved if sharpened and maintained correctly.HOW DO KNIFE SHARPENERS WORK – Good sharpening systems shape the knife edge with a coarse abrasive and polish with a finer abrasive.