A sharp lawn mower blade protects your grass, however, not everyone has a setup for sharpening. With this inexpensive tool, you can do it anywhere.

Like any cutting tool, it's important to make sure your rotary cutter blades stay sharp to ensure they work and reduce the risks associated with a dull blade.

Add Yahoo as a preferred source to see more of our stories on Google. A dull mower blade tears grass instead of cutting it, making lawns look ragged and increasing the likelihood of disease. Before ...