Chef's Choice Diamond Hone Plus EdgeSelect knife sharpener Model 120: The lightening fast professional home sharpener uses completely new technology to create, in seconds, the Trizor -Plus edge which can be customized to suit each cutting task. Sharpens straight edge and serrated knives, the Chef's Choice Edgeselect has twice the power of any other home sharpener. Extremely easy to use, anyone can put astonishingly sharp long lasting edges on knives in seconds. You can select extremely sharp hair splitting edges that slide smoothly and effortlessly through delicate foods like smoked salmon and prosciutto or alternately, edges with carrying amounts of "bite" for more demanding jobs, like cutting tough fibrous foods and meats. 100% fine diamond coated conical disks in Stage 1 and Stage 2 form the first and second bevels of a durable, arch shaped edge. In stage 3, a revolutionary flexible stropping disk creates an ultrasharp polished third bevel and cutting tip while polishing the first two bevels to form sharp cutting flutes that enhance the cutting action on both sides of the edge. Built in high precision elastomeric angle guides eliminate guesswork, ensure hair splitting sharpness time after time. The new sharpener is so ruggedly built that it is backed by a limited 3- year warranty. The unit is compact, the resilient elastomer feet hold the unit securely to work surface. The Chef's Choice Diamond Hone Model 120 requires no sharpening oils or liquids. Made in the USA.