So when the Field & Stream office told me they were sending me a new power sharpener to test, I emitted a groan not unlike a manatee cow in labor but agreed to try it anyway. It's called the Work Sharp Knife and Tool Sharpener (above), and rather than using grindstones, it uses belts. (Just about all custom knifemakers use grinding belts to put edges on their products.) The thing works. I have fed it soft blades and hard blades, thin blades and thick blades, serrated edge blades, cheap blades and costly blades, and every one of them emerged sharp enough for surgery. By stopwatch, it took me one minute and 58 seconds to bring a medium-dull knife to shaving sharp, and this included a belt change.