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I bought a blade similar to this for my string trimmer and turned it into a hand held mini-bush hog. Eats through almost anything that grows.
Gets dull on rocks and chain link fence.
I also have a Stihl FS 56 with string head and a metal saw blade that saw blade is one heck of thing it doesn't care what it hits I have cut up about 1" brush with it and also a few rocks but over all I use that very little once I see what it can do to dangerous for anybody within 30' of you. Nice idea but not practical.
On a power cutter a coarse toothed saw blade beats everything.
Grasses and weeds no problem and with technique you can drop up to 1.5" saplings.
Just make sure the dog is tied up! (a neighbor now has a 3 legged dog)
I've used the
Brush Knife (good for heavy thick weeds like berry and thornbushes, not good with rocks or metal), the
Circular Saw Blade - Chisel Tooth (cut a lot of saplings and 2" bamboo, not good with rocks or metal), the
Circular Saw Blade - Scratcher Tooth (I prefer the chisel tooth, not good with rocks or metal), the
Grass Cutting Blade (kind of between a good thick trimmer line and the brush knife, not good with rocks or metal), and the STIHL PolyCut Mowing Head (great for grass and thick weeds, not so good on small saplings, useless on 2" saplings and bamboo BUT bounces off rocks, thick bark and metal) and the only one that worked well with rocks and metal (chain link fence) was the polycut. That and the Circular Saw Blade - Chisel Tooth are my two most used heads I also occasionally use trimmer line.
Like everything WEAR PROPER PERSONAL PROTECTIVE EQUIPMENT, FOLLOW SAFETY STANDARDS, KEEP FLESH (DOGS, CHILDREN, SPOUSES, ETC, FAR AWAY!!
