Maintain your investment in quality cutlery with the Chef's Choice M312 Diamond UltraHone Knife Sharpener. Compact and easy to use, this handy tool will give your knives better than factory edges. 2-stage process uses 100% fine diamond abrasives to sharpen and hone a gothic arch shaped edge that is stronger and longer lasting than a conventional v edge. Highly precise guides hold the knife in the proper position while you sharpen for foolproof results. Great for all types of household knives as well as sporting and pocket knives. Model number: M312 ; Dimensions: 8.5 wide x 4.0 high x 4.0 deep. Weight: 3.8 lbs. Assembled in the U.S.A.