It's amazing what you can cut when you ditch the more common 4 sided blades and get something with some teeth on it. Btw you're cutting those saplings with mostly momentum instead of engine power.Purchased a Stihl FS130 4 mix trimmer 2 years ago and have been very happy with it. Running a dual line head with .105 line it goes through large weeds and tall grass with ease. If I put a brush cutter blade on it will handle saplings in the 2" to 3" size. Just incredible amount of power this trimmer has.


It's amazing what you can cut when you ditch the more common 4 sided blades and get something with some teeth on it. Btw you're cutting those saplings with mostly momentum instead of engine power.
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Never used either of those blades. Never even considered the 4 sided one. Just didn't seem like it would work to me. I use string or a tooth blade.
Always wondered if those chain saw blades were any good.
TBS
I have one although a different brand. It worked great but didn't stay sharp very long. The dull blade still cuts briars and 1/2" brush pretty well, but it doesn't do to good on big stuff anymore.
If it was a real chainsaw chain you could, but mine was more of a V profile.Seems like they might be easy to touch up with a file, no?
Stihl, however, does have the edge in saws. The trimmers are equally reliable. Given, of course, that you maintain them properly.

I was always of the opinion that a chain saw blade cutter would dull up the very first time that you accidently got it in the dirt, just like a chain saw. For that reason I never bothered to get one. I have used an old carbide bit skilsaw blade with good success on my Poulan weed eater. Got to keep it away from fence wire and rocks though. I keep .105 square nylon string on my Stihl weedeater and it wades thru the thickest grass and weeds without stalling.I have one although a different brand. It worked great but didn't stay sharp very long. The dull blade still cuts briars and 1/2" brush pretty well, but it doesn't do to good on big stuff anymore.
Getting ready to buy a trimmer. Any thoughts on these two engine designs?
I've had an FS130 for 8 years. The 4 mix takes a little getting used to, but mainly how it sounds due to the way it conserves power. I guess it's a sort of governor, but even medium weeds and brush can't slow it. So when at full throttle (which is what it's supposed to be run all the time) it will sound like it's under powered but that's because the governor is holding it back not that it is slowing due to the work at hand. It's still muscling through everything you throw at it. Get it into heavier brush or weeds and it sounds better in my opinion. That's when it sounds like it's running wide open and is still keeping up with the heavy stuff.
I always run Stihl oil, either semi or full synthetic. I have never run it dry to store, at least not on purpose, and it always starts right up after hanging there for months. If buying another trimmer, I would stick with Stihl. I think either brand would be fine, and the better dealer support might swing your decision.