The best 40V cordless brush cutters
A shortlist of 40V cordless machines for gardeners who want more than an 18V trimmer, ranked by cut width, blade capability and what's in the box.
In short:The 40V machines we cover are from Greenworks and Worx. The Greenworks GD40BC is a brushless brush cutter with a 40 cm cut, 25 cm blade and harness, sold tool-only; the Worx Nitro WG186E (two 20V PowerShare batteries) is a brushless brush cutter with a 38 cm line, 25 cm steel disc and DriveShare attachments, 4.1 kg bare. For lawns, the Worx WG183E (33 cm, AutoFeed, 2.9 kg) comes with two batteries, and the Greenworks G40LT (30 cm, split shaft, variable speed) is tool-only.
Our picks, ranked
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What matters at 40V
40V sits above the 18–20V trimmers, with enough torque for a wider line head or a real metal blade. Compare cut width, whether the machine is blade-capable, and whether batteries are included — a bare tool is great value if you already own that platform, an extra cost if you don’t.
Our picks
- Greenworks GD40BC — brushless, 40 cm cut with 2 mm line, 25 cm blade, harness and D-grip; three-year guarantee. Tool-only.
- Worx Nitro WG186E — two 20V PowerShare batteries, brushless, 38 cm line and 25 cm three-blade steel disc, DriveShare attachments; 4.1 kg bare.
- Worx WG183E — 33 cm dual-line trimmer with AutoFeed, two batteries and charger included; 2.9 kg.
- Greenworks G40LT — 30 cm trimmer with auto-feed line, variable speed, plant guard and a split shaft; tool-only.
Which should you choose?
For open ground and tough weeds, the Greenworks GD40BC. For a brush cutter that also powers a hedge trimmer, the Worx Nitro WG186E. For lawns with no extra purchases, the Worx WG183E. Comparisons: Worx WG183E vs Greenworks GD40BC, 36V vs 40V.
Our picks at a glance
| Model | Type | Engine / power | Weight | Rating |
|---|---|---|---|---|
| Greenworks GD40BC | Cordless | 40V G40 | — | 8 / 10 |
| Worx Nitro WG186E.9 | Cordless | 40V PowerShare · Brushless | 4.1 kg bare; about 5 kg with batteries | 8 / 10 |
| Worx WG183E 40V | Cordless | 40V PowerShare (2× 20V) | 2.9 kg (Amazon item weight) | 7.6 / 10 |
| Greenworks G40LT | Cordless | 40V G40 | — | 7.6 / 10 |
Weights are as stated by the maker, UK retailers or Amazon, so some include a battery or cutting gear and others don't — see each review for details.
Compare our picks head to head
Frequently asked questions
Is 40V powerful enough to replace a petrol brush cutter?
For grass, nettles and light scrub, the 40V brush cutters here — the Greenworks GD40BC and Worx Nitro WG186E, both with metal blades — cope well. For thick brambles or all-day work on big plots, petrol still has more sustained torque.
What's the difference between the Worx WG183E and the Nitro WG186E?
The WG183E is a 2.9 kg line trimmer sold with two batteries. The Nitro WG186E is a brushless brush cutter with a 25 cm steel disc and DriveShare attachments, sold bare.
Are the batteries included?
Only with the Worx WG183E. The Greenworks GD40BC and G40LT are tool-only on their UK listings, and the Worx WG186E.9 is the bare tool.