Tested and trusted for over 25 years, the Chef'sChoice® brand is recognized as the industry leader in the manufacturing, marketing and distribution of knife sharpening products. Known for the highest quality and innovative products, Chef's Choice's fully integrated manufacturing facility in Avondale, Pennsylvania, USA, incorporates technology that uses 100% diamond abrasives and precision angle guides to achieve better than factory edges that stay sharp longer, with minimal edge removal and no distempering. These are the best knife sharpeners in the world, and there is a knife sharpener to suit every application.