Keep your knives sharp and cutting like new with the Chef'sChoice Professional Electric Knife Sharpener with Diamond Hone. Compact and lightning fast, this professional sharpener uses advanced technology to sharpen both fine edge (straight edge) and serrated knives. The 2-stage sharpening provides arch-shaped edges, which are stronger and longer lasting than hollow ground or conventional “V” edges. Stage 1 uses 100% fine diamond abrasives to create the first bevel and Stage 2 ultra-hones the edge using advanced micron size 100% diamond abrasives to complete the second bevel. The precisely formed conical diamond abrasive disks gently apply optimal sharpening pressure, guaranteed to never detemper the edge. Highly-precise knife guides automatically position and stabilize the knife as you sharpen for fast, foolproof results. The Model 320 is ideal for sharpening all types of knives, including kitchen, household, sporting and pocket knives. This compact unit features resilient elastomeric feet that hold the unit securely to the work surface. Engineered and assembled in the USA. Covered by the Chef'sChoice Three-Year Limited Warranty.