Cordless convenience

This battery grass trimmer uses an 18V motor, giving you the freedom to cut and edge the lawn - without a cord to hold you back. At just 1.75kg, the Gtech ST20 is incredibly easy to manoeuvre, putting less strain on your arms and back.


Designed for comfort and ease of use, the Gtech ST20 features an adjustable handle, offering perfect balance. Equipped with a one-handed power trigger (and a safety switch to prevent accidental starting), it’s beautifully simple to operate.


With a twist of the cutting-head, the Gtech Grass Trimmer easily converts to a precision lawn-edger, helping you give your garden a neat finish.

30 minute run-time

The Gtech grass trimmer mechanism is powered by a Lithium-ion battery, giving you up to 30 minutes of run-time with each 4-hour charge.*

Lithium-Ion battery
Lithium-ion battery

If you need more time, Gtech ST20 spare batteries are available from Gtech. They’re interchangeable with the Gtech HT20 Hedge Trimmer, so you’ve got a great excuse to expand your cordless garden tool range.

Easy-fit Plastic Blades
Easy Fit Plastic Blades

No more struggling with wires or cords, the Gtech Grass Trimmer easy-fit blades clip on quickly and easily. Your initial purchase comes with 20 Gtech trimmer blades, but you can order more blades for your Gtech ST20 from us if you need to. Blades come in packs of 50 for just £3.99.

Full range
Part of the new Gtech garden power tools range

The Gtech Grass Trimmer and lawn edger is part of a brand new Gtech cordless garden tools range, launched in spring 2016. The Gtech Grass Trimmer is accompanied by a lightweight Lithium-ion Hedge Trimmer and powerful Cordless Mower.

Gtech Swift Cordless Grass Trimmer

You can download the full product manual for more details and specifics on the product.

  • Run-Time 30 mins*
  • Power 18V
  • Weight 1.75kg
  • Cutting Width 23cm
  • Battery Type Lithium-Ion
  • Charge Time 4 Hours

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Gtech ST20 Cordless Grass Trimmer £99.99

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Gtech ST20 Cordless Grass Trimmer|1-06-017|In Stock