The Chef's Choice Model 290 is an outstanding hybrid knife sharpener, combining manual and electric functions. It features a 3 - stage sharpening system, using 100% diamond abrasives. This sharpener can handle Euro/American and Asian style knives, with 15 - degree and 20 - degree edge capabilities. It can sharpen double - bevel and serrated knives, thanks to its advanced CrissCross sharpening technology and patented flexible stropping/polishing disks. With the AngleSelect function, it restores and creates precise edges on different knives. It's quick and easy to use, getting you back to cooking in no time. Made in America, UL and ETL certified for safety.

Using the Chef's Choice Model 290 is a breeze. First, decide which edge angle (15 or 20 degrees) you need based on your knife type. For Euro/American style knives, you might often use the 20 - degree setting, and for Asian style knives, the 15 - degree setting. Place your knife in the angle guide system to ensure accurate placement. Run the knife through the first two electric stages for sharpening and honing. The first stage is for 15 - degree knives, and the second for 20 - degree ones. After that, use the third stage for polishing. For serrated blades, you can directly use the third stage. When using the sharpener, make sure your hands are dry and hold the knife firmly. Avoid applying too much pressure, as the sharpener is designed to work effectively with normal use. To maintain your sharpener, keep it clean. Wipe it down after each use to remove any metal shavings. Store it in a dry place away from moisture to prevent damage to the diamond abrasives and the internal components.