The unanimous top pick across every major testing source. Three-stage diamond abrasive system converts 20-degree knives to razor-sharp 15-degree edges and can resurrect seriously damaged blades.
The best electric knife sharpener I used while testing was the Chef's Choice Trizor XV, magnets on the sharpening tracks ensure the correct sharpening angle, so the risk of making mistakes while sharpening a dull blade on the diamond abrasives is pretty minimal.
This electric knife sharpener features a three-step process that creates a razor-sharp blade using diamond abrasives, it was sturdy with slip-resistant feet, and offers a good amount of space to rest your hand and secure the unit while it's in use.
Half the price of the Trizor XV with nearly as much versatility, sharpens knives, scissors, and serrated blades with a foolproof timer-based system. Compact enough to store in a drawer.
The bench-mounted chainsaw sharpener pros actually use, robust enough for commercial shops, with a built-in work light and wear indicator. Pays for itself after a few dozen chains versus hiring a pro.
The clear winner in Serious Eats' head-to-head whetstone testing, dual 1000/6000 grit stones with an angle guide and nonslip holder deliver pro-level results for beginners. Achieved a 291% sharpness increase in testing.
The most affordable electric chainsaw sharpening option that includes everything you need, rotary tool, three file sizes, and an angle guide, in one compact kit under $50. Variable speed makes it adaptable to different chain sizes.