EdgeCraft Corporation was established in 1985 with a very specific mission; to create the world's best knife sharpener. EdgeCraft's first sharpener became an immediate success, acclaimed world- wide for performance and quality. Today EdgeCraft has a full array of sharpeners -- electrics, manuals, hybrids and specialty -- and a continuing determination to offer only the world's best products.Quickly and easily apply razor sharp, double-bevel edges from tip to bolster. This 2-Stage electric knife sharpener uses orbiting 100% diamond abrasives and foolproof BiLevel magnetic guides to give knives sharper, longer-lasting edges. Safe for quality knives. Sharpens the entire blade of kitchen, pocket and fishing knives. One year limited warranty. Engineered and assembled in the U.S.A. 2-Stage sharpener with 100% diamond abrasives Advanced Bi-Level magnetic guides for easy, foolproof sharpening For 20 degree class kitchen, household, sports and pocket knives. Approximately 3 to 5 minutes for first time sharpening. Resharpening is approximately 15 to 20 seconds Crafted from the highest quality materials Built for performance and durability Safe for quality knives.Chef's Choice Professional Model 310 is designed to produce incredibly sharp knife edges in a fast and easy manner. Sharpens the entire blade of kitchen, pocket and fishing knives. One year limited warranty. Engineered and assembled in the U.S.A.