There are few things in the kitchen as satisfying as using a truly sharp knife. Want some slices of zucchini so thin you can read through them, or some beautiful julienne vegetables? Well, my friend, ...

Here are the five sharpeners we tested on dull restaurant kitchen knives supplied by Frank Monaldi Sr. of Frank's Cutlery Service in Baltimore, and on some of our own knives (Wusthof, Henckel, ...