If you've ever taken the time to change the blade on your rotary lawn mower, it may have taken a minute to realize the bolt ...

Mower blades themselves aren't threaded, but rather the fastener that holds the blade in place can be either right or left-threaded. Right-hand threaded fasteners tighten clockwise and loosen ...

If you have a lawn on the larger side, the idea of a lawn mower that you can sit and ride around on rather than manually pushing is naturally appealing. It saves you energy, it gets the job done ...