These forestry clearing saws will cut a lot of stuff and much easier than bending over with a chainsaw.
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I have the FS 350 model with a brush/weed blade, chainsaw type blade, and a normal saw kerf blade. They come with a shoulder harness that supports the saw's weight. 2"-3" trees are no problem for mine. I use it to keep walking trails too narrow for the tractor clean. It's my lawn grass whipper too with a string head.
Judging by what the 350 model can do, the 560 would be a serious cutting machine. They are used by forestry crews to thin tree stands and remove unwanted species.