- Models: FSA 57
- Diameter 1.6 mm
- Inserts into STIHL AutoCut C 3-2
FREE Home Delivery on all online orders
Store Pick Up - FREE. Includes assembly of tools prior to collection. The store will contact you when your order is ready.
We will happily accept returns or exchanges up to 14 days after the date of purchase, provided the products are in their original condition and packaging. Click here to view our full Returns Policy
All STIHL products purchased online will be issued a STIHL warranty.
1. Tools used for home/farming applications receive a 2 year warranty. Double the warranty of your STIHL 2 MIX, STIHL 4 MIX® and STIHL 2 Stroke petrol tools purchased online to 4 years by adding HP Ultra Oil (minimum 1L) to your purchase.
2. Tools used in a professional application receive a 6 month warranty
3. STIHL Polymer Bodied/decked Lawnmowers receive a 10 year warranty on the polymer body (not associated parts) the handle and the catcher.
Click here to find out more about the STIHL Warranty
Promotion ends 29 February 2024
The STIHL FSA 57 is a light and easy-to-use Battery Line Trimmer with plenty of power, ideal for medium to large gardens. When using the FSA 57 getting started on your trimming project is as fast and easy as pushing a button, the tool is so quiet you don't even need to put on ear protection.
Only weighing 2.6 kg (without battery), the lightweight design allows you to work outside longer without tiring and the shaft can be extended to your preferred height to ensure you are comfortable while using the tool. The mowing line automatically extends when the head is tapped on the ground and can be refilled easily without any tools.
The FSA 57 is part of our AK Cordless Range of tools with interchangeable batteries - the high quality STIHL batteries can be used in other tools in this range including a Hedge Trimmer, Blower, Chainsaws and Lawnmowers.
Run time on AK 20 battery: Up to 50 minutes
Run time on AK 30 battery: Up to 60 minutes
Run times quoted are based on ideal operating conditions. Times will vary depending on load and conditions.
Rated Voltage (V)
Length no cutting tool (cm)
Standard Cutting Head
Standard Mowing Line
STIHL Battery System
Charge Time with Recommended Charger
To fully charge the AK battery it takes 95 minutes, or to charge it up to 80%, it takes 70 minutes.
Blade can be fitted
Q: How Long Will the Battery Last?
A: Under ideal conditions, the AK 10 battery will last up to 25 minutes, mow up to 125 m² of grass or 625 m of lawn edges.
Q: How long does it take to charge?
A .To fully charge the battery it takes 95 minutes, or to charge it up to 80%, it takes 70 minutes.
Q: What size garden will it maintain?
A: The FSA 57 is the ideal grass trimmer for medium to large gardens.
Q: What type of cutting attachment does this use?
A: This Linetrimmer uses an AutoCut® C 3-2 mowing head, which uses STIHL Blue Nylon Line 1.6 (mm)
Q: Are the batteries interchangeable?
A: Yes, all of the tools in the AK Cordless System use the same style of battery. For the FSA 57, we recommend the AK 10 battery as it is lighter and means the tool is perfectly balanced.
Q: What battery does is use?
A: The FSA 57 is powered by an interchangeable 36V Lithium-Ion battery.
Extending the life of your nylon
Before using your nylon line for the first time, it's a great idea to put in water and leave it to soak for 12–24 hours. This makes the line much more flexible and less likely to break.
Cleaning your machine
Once you've finished using your Line Trimmer, take the battery out and use a soft brush to remove any debris, and wipe down the exterior with a damp cloth.
Storing your Line Trimmer
Make sure your FSA 57 is kept in a dry, secure place with the battery removed when not in use. Keep this machine out of the reach of children.
When using your Line Trimmer
Because the FSA 57 uses an Autocut® mowing head, it is only suited for trimming grass. To avoid damage to the head, do not attempt to cut thicker material such as wood.