The Chef’sChoice Model 440 is a top - notch manual knife sharpener. It features a 2 - stage sharpening system. With 100% diamond abrasives and Interdigitating Diamond Pad technology, it can sharpen a wide range of knives, including everyday cutlery, sport knives, pocket knives, and filet knives. Designed for Euro/American style knives with a 20° edge, it creates arch - shaped edges that are stronger and last longer. The soft - touch handle ensures an easy and secure grip. This sharpener is light, compact, and portable, perfect for use at home, in a cottage, or on the go. It requires no electricity or lubrication, so you can use it anywhere.

Using the Chef’sChoice Model 440 knife sharpener is a breeze. First, turn on your knife and place it in the first stage of the 2 - stage sharpening system. The precision rollers will guide the blade for you, so just move the knife back and forth a few times to create the first bevel. Then, move the knife to the second stage to hone it and create the second bevel. Remember to keep a firm grip on the soft - touch handle while you're doing this. When it comes to maintenance, there's not much to worry about. Since it uses diamond abrasives, they're very durable. Just keep it clean and dry after use. And as a safety note, always be careful when handling sharp knives and the sharpener itself. Don't use it on knives that are too damaged or bent, as it might not work properly and could be dangerous.