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FS-KM Line Head Trimmer

This STIHL KombiSystem line head trimmer attachment is designed for trimming around obstacles.

FS-KM Line Head Trimmer
Rated 3.4 out of 5 by 12 reviewers.
Rated 2 out of 5 by Somewhat disappointing in the design Bought this tool as part of the Kombi system and have been somewhat disappointed, mainly due to problems with the bump and go design. While the tiller tool works great, the trimmer isn't as great. Have found it tedious to load new line and more difficult to get the head off to pull the line back out after it has retracted, which occurs quite often. You need to carry a screwdriver with you because it is extremely difficult to release the cover on the line container without it. I spend more time pulling the line back out or reloading new line in than I spend trimming. It is also a rather heavy trimmer, which makes it more difficult to use when edging, but this is probably due more to the motor weight than the tool. The Stihl engine works great, starts easy, but the trimmer attachment is not of equal quality of design. (BTW, the instruction manual is of little value when it comes to how to load the line or the bump & go feature.) June 4, 2014
Rated 4 out of 5 by A Beast for Occasional Homeowner Use I had a line issue too when using a mid-grade line from a box store. I went to the Stihl dealer, watched him wrap it with Stihl line, and my problems vanished. I also keep it pretty clean and it's not heavily used. But the problem I had constantly last season is now completely vanished. Looking forward to doing heavier work with brush saw at a friend's farm this weekend. June 2, 2014
Rated 1 out of 5 by VERY BAD PRODUCT FROM A GOOD COMPANY The Autocut head is worthless. The line fuses to itself or cuts off to wear it can't thread thru the eyelets no matter how many times you bump it. You have to stop what you're doing, open up the head and thread the line thruogh the eyelets or pull the line apart because it fuses to itself. When you do this it probabbly will unwind and you'll have to rewind the spool again. A total piece of junk. DON'T BUY THIS! YOU'LL BE SORRY!!! Stihl is a great company. My Kombi motor starts virtually every time. Great power. Stihl is too good a company to put out junk like the Autocut. The good news is if you are buying for the first time or if you unfortunately already bought the Autocut there is a remedy. Buy the FIXCUT HEAD. It works great. You put two 8 inch pieces of line into the eyelets and you're good. When they wear down pull them out and put two new ones in. Easy as cake. As bad as the Autocut is, is as good as the FIXCUT is FIVE STARS!!!!! May 15, 2014
Rated 5 out of 5 by Excellent Machine I am awed by the power of this system. I've used the standard home store trimmers for years and would have to replace them every season or two. The only reason that I did not rate it excellent across the board is because I also had the line breakage issues noted by other reviewers. I don't think this is a design flaw, more that the stock line that comes loaded in the head is just brittle and breaks easily. I plan to use some higher quality line when it comes time to re-spool and expect this issue to go away. September 21, 2013
Rated 3 out of 5 by Made well with good features I have arthritis in my back and the straight shaft puts a lot more strain on my back than my previous curved shaft trimmer that I owned. Other than that, this is a very well made piece of equipment. For me, that was the only draw back. September 5, 2013
Rated 5 out of 5 by Works just fine for me I bought this attachment along with a KM130, and have had none of the feeding or line breakage problems that other people have mentioned. Probably the best string head I have used in terms of functionality and ease of refilling. July 28, 2013
Rated 5 out of 5 by Works best with heavier line. There are so many things you can do with this string trimmer. Using just the string I trim grass around where the mower can't, edge small areas, cut back small tree limbs and bushes and tall weeds, and even blow off sidewalks in a pinch. With different blades you can cut down small trees, bramble and large hanging vines. With the "hover trimmer" attachment you can do all the above with one device and mulch too. July 23, 2013
Rated 5 out of 5 by Great Quality!! I have read the other reviews and just laugh. The head is the same bump head used on all Stihl straight shaft trimmers (millions sold). All parts are easily to maintain and replace. As with any bump head, you must bump the head on a flat surface and engage the spring loaded knob while giving the trimmer some gas. The RPMs and centrifugal force advance the line. The line will break off if you; a) are using old line, or b) let the line get so close to the housing before advancing more line. I own many trimmers with these heads, never any problems. If the other reviewers are having problems, they need to consult their local dealer. July 8, 2013
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