If you own a hobby farm, as I do, a gas-powered sickle bar hair trimmer is a very handy tool. The blade can tilt left and right so it can easily go over rough, uneven ground, and it will cut anything up to about an inch thick without slowing down.
Location: Farm
Have you used this tool? Think my description is all wrong? Have a better example? Comment now with any thoughts you have about this tool!