What is a Lawn Mower Blade Sharpener?

A lawn mower blade sharpener is an accessory that is used to keep a lawn mower functioning properly. Lawn mower blades, like all metal blades, need periodic sharpening to keep working at maximum efficiency. The best results come with using a quality bench grinder or professional blade grinder as a lawn mower blade sharpener. The removal of the lawn mower blade is the trickiest part of the sharpening process. To start, remove the spark plug wire to prevent the mower from starting accidentally, and then squirt the blade bolt and nut with penetrating oil. Use a blade holder to keep the blade still while removing the nut, and scrape off excess grass and dirt around the middle hole in the blade prior to using the lawn mower blade sharpener. Maintaining the correct angle of the blade is most important while sharpening. The owner's manual for the lawn mower blade sharpener will show the exact angle where the blade should be, but it is typically 40 degrees. A blunt angle will lessen the ...  more