10 Best Knife Sharpeners (Update 2022) Buyer’s Guide May 19, 2022 · This knife and tool sharpener works for hunting, kitchen, filet, outdoor, tactical, and pocket knives. The Work Sharp Knife and Tool Sharpener features three abrasive belts that deliver coarse, medium, and fine blade finishes. This sharpener also boasts three precision sharpening guides at 40, 50, and 65 degrees, respectively.