Say goodbye to dull, uneven mower blades that tear grass and bog down your engine. This lawn mower blade sharpener and balancer mounts to most angle grinders and lets you restore a clean cutting edge at home instead of paying for a shop service. An adjustment handle and clear scale set the sharpening angle anywhere from 15 to 45 degrees, so you can match each blade's factory bevel, while a ball-bearing guide arm and four holder bars keep the blade steady for consistent results. Built from lightweight, corrosion-resistant aluminum alloy and weighing about 7 lb., the tool is easy to carry from the garage to the shed or a customer's property, and the 1 in. enlarged handle reduces hand fatigue during longer jobs. Once a blade is sharp, the included six-magnet aluminum balancer checks that it spins true, cutting down on the vibration and early engine wear an unbalanced blade can cause. Not sure it fits your mower? Four adapter pins work with most angle grinders, and the jig accommodates blades up to 30 in. long, 0.28 in. thick, and 2.76 in. to 5.51 in. wide, covering most walk-behind and riding mowers. The angle grinder is not included.