STIHL FSA45 Lithium-Ion Straight-Shaft Grass Trimmer with PolyCut Head

Part of the AI Series, the FSA 45 delivers STIHL quality at a value price. It features an adjustable shaft length to fit different user heights and enhance comfort. With its adjustable trimmer head, this tool can adapt to various trimming tasks. It comes standard with the STIHL PolyCut 2-2 mowing head, making it ideal to cut in hard-to-reach places and large areas of tall grass. Plus, you can trim the length of three football fields when its integrated battery is fully charged thatĂs up to 1,080 feet. This STIHL AI Series trimmer is also just 5.1 lbs. (including battery) for easy portability and maneuverability. This trimmer is a great choice for occasional use on small properties.

Features    Specs


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Adjustable front handle

The front handle is easily adjustable (360-degree rotation) for comfort.

Loop Handle

A thumb screw allows the ergonomic loop handle to be easily adjusted to the desired position without tools.

Reduced-Emission Engine Technology

The STIHL Inc. ˘Caring for Nature÷ seal identifies its powered products that are more environmentally conscious, producing zero or low exhaust emissions. STIHL Inc. defines ˘low exhaust emissions÷ as being cleaner than EPA and/or CARB exhaust emission standards.


Cutting Width



Occasional Use

Power Source


Run Time (w/ Integrated Battery)

Up to 20 min. (w/ STIHL PolyCut)
Up to 12 min. (w/ line)

Weight (w/ Integrated Battery)

5.1 lbs.