Chef'sChoice® Diamond Hone® Serrated #430

The revolutionary manual knife sharpener for serrated and "never-need-sharpening" knives! Precision guides and 100% diamond abrasives turn dull serrated teeth into ultra-sharp "micro-blades". Knives glide effortlessly through food for clean, smooth cuts. Easy to use right- or left-handed. Made in the U.S.A.