Sharpen the blade twice each season to help maintain a green, healthy lawn. A sharp blade not only cuts blades clean so grass plants recover quickly, it helps reduce your lawn mowing time. Learn how to sharpen your lawn mower blade at http://www.familyhandyman.com/DIY-Projects/Outdoor-Projects/Yard/Lawnmowers/lawn-mower-blade-sharpening
How to Sharpen Tools - A bench grinder, file and cone-shaped blade balancer are the key tools for creating a sharp edge and well-balanced blade. There's no technical mystery to sharpening garden tools like your lawn mower blades, ax and shovel. In this article, we'll show you step-by-step methods to file and hone an axe using a sharpening stone, how to sharpen a shovel and the best way to sharpen your mower blades.
Lawnmower blade improvised weapon idea. ((In the genre of converting tools into knives, I like this the most, because in a real disaster, you're just going to buy a new lawn mower later, right? Or gut the engine for parts.))