How to Sharpen Your Mower Blade Sharpening your lawn mower’s blade is key to a good-looking lawn. A dull blade creates ragged edges on grass tips that can turn brown after a few days or invite ...

The best cut for your yard comes from a sharp lawn mower blade. A dull blade damages your grass by creating a ragged cut, which can lead to bare patches and other eyesores, as well as invite disease.