String Trimmer vs Brush Cutter: Which One Clears Your Acreage?
String trimmers and brush cutters compared on cutting heads, power, what they can cut, weight, noise and upkeep, with one example of each from the listings we reviewed.
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Top picks at a glance
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- 1
Wild Badger Gen2 31cc Gas String Trimmer9.7/10View on Amazon - 2
Wild Badger Power 52cc 2-Cycle Weed Wacker String Trimmer9.6/10View on Amazon - 3
52CC 6-in-1 Multi-Functional Weed Wacker Gas Powered 2-Stroke9.6/10View on Amazon - 4
Wild Badger Power Gen2 26cc Gas String TrimmerView on Amazon - 5
NeJesZoe Trimmer Strap Upgraded for Weed Shoulder Strap EasyView on Amazon - 6
Weed Eater Strap HarnessView on Amazon - 7
NeJesZoe Trimmer Shoulder Strap Universal Weed Strap UpgradedView on Amazon - 8
Anleolife .155" Heavy Duty Dual-Core Brush Trimmer LineView on Amazon - 9
NEO-TEC 3-in-1 Gas String Trimmer Powerful 26cc 2-Cycle GasView on Amazon
Verdict: Choose a string trimmer if your work is grass and soft weeds along fences, beds, walks and around trees. Choose a brush cutter if you also clear thick weeds, briars, brush and small woody growth along field edges and ditches, and can handle a heavier gas tool.
The string trimmer vs brush cutter question comes down to what you cut. Both spin a head at the end of a shaft. A string trimmer spins nylon line that whips through grass. A brush cutter takes metal blades as well as line, so it can cut stems that would shred or wrap a line head. This comparison covers the differences, then one example of each from the listings we reviewed.
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Boltarc RT-01 21V Cordless String Trimmer
A 21V cordless string trimmer with a 500W motor, auto feed line, a 90 degree rotating head for edging and two 4.0Ah batteries rated for up to 120 minutes together.
Who it's for: owners of one to five acres who trim grass and weeds along fences, beds, driveways and walks and want no fuel mixing.
Who should skip it: anyone clearing woody brush, briars or saplings, which need a blade.
Read the full review
The RT-01 is a typical cordless string trimmer: a 21V platform with a 500W motor rated up to 9000 RPM, an auto feed line head with a debris guard and a head that turns 90 degrees for edging. The kit includes two 4.0Ah batteries, a fast charger and eight spools, and the listing rates up to 120 minutes of runtime across both batteries.
Pros
- Two 4.0Ah batteries and a fast charger in the box
- Auto feed line keeps cutting length without bumping
- Head rotates 90 degrees for edging walks and beds
- Eight replacement spools included
Cons
- Line only, no blade for woody stems
- The 5.8 in cutting width in the spec table is narrow for open ground
- Warranty is not stated on the listing
- Weight is not stated
voluker 58cc 4-in-1 Gas Brush Cutter and String Trimmer
A 58cc 2-cycle gas brush cutter with a straight split shaft, a U-handle and shoulder strap, and swappable heads: dual line bump feed, a brush cutter blade and a circular saw blade.
Who it's for: owners of two to ten acres with overgrown fence lines, ditches, briars and brushy field edges.
Who should skip it: anyone who only trims lawn edges, where a lighter battery trimmer is easier to live with.
Read the full review
The voluker kit is a straight shaft brush cutter built around a 58cc 2-cycle engine rated up to 9300 RPM. It ships with a dual line bump feed head for grass, a brush cutter blade and a circular saw blade, plus a U-handle, shoulder strap, safety guard, tool kit, spare starter rope and spare spark plug. The description gives a 10 in path with line and 18 in with the blades.
Pros
- Line head plus brush and saw blades in one kit
- 58cc engine rated up to 9300 RPM
- Split shaft breaks down for transport and storage
- Spare starter rope, spark plug and mixing bottle included
Cons
- 2-cycle fuel mixing and engine upkeep
- Cutting path is listed two ways, 18 in in the text and 18.5 in in the spec table
- Warranty is not stated on the listing
- Weight is not stated
Other machines to compare
Wild Badger Power Gen2 26cc Gas String TrimmerCheck price on Amazon
NeJesZoe Trimmer Strap Upgraded for Weed Shoulder Strap EasyCheck price on Amazon
Weed Eater Strap HarnessCheck price on Amazon
NeJesZoe Trimmer Shoulder Strap Universal Weed Strap UpgradedCheck price on Amazon
Anleolife .155" Heavy Duty Dual-Core Brush Trimmer LineCheck price on Amazon
NEO-TEC 3-in-1 Gas String Trimmer Powerful 26cc 2-Cycle GasCheck price on Amazon
String trimmer vs brush cutter side by side
| Factor | String trimmer (Boltarc RT-01) | Brush cutter (voluker 58cc) |
|---|---|---|
| Cutting head | Auto feed line | Line head, brush blade and saw blade |
| Power | 21V battery, 500W motor | 58cc 2-cycle gas engine |
| Speed (stated) | Up to 9000 RPM | Up to 9300 RPM |
| Cutting path (stated) | 5.8 in in the spec table | 10 in with line, 18 in with blades |
| Best at | Grass, weeds, edges along beds and walks | Thick weeds, tall grass, brush and shrubs |
| Runtime or fuel | Up to 120 min on two 4.0Ah batteries | Mixed gas, mixing bottle included |
| Handle | Single shaft, 90 degree rotating head | Straight shaft, U-handle, shoulder strap |
| Upkeep | Charge batteries, replace spools | Fuel mix, spark plug, blade care |
Figures are manufacturer stated for the two example models, collected 25 October 2026.
Cutting head: line or blade
A string trimmer uses line only. Line is forgiving: it bounces off fence posts, stones and tree trunks with less damage, which is why it suits edges and tight spots. It struggles once stems turn woody, and thick, tough weeds wear line down fast.
A brush cutter keeps a line head for grass, then swaps to a metal blade for brush. The voluker kit below includes a brush blade and a circular saw blade. Blades cut what line cannot, but they kick hard if they strike a rock or a post, so they need a guard, a harness and open space.
Power and runtime
Most homeowner string trimmers now run on batteries. The Boltarc example uses a 21V platform and two 4.0Ah batteries, with up to 120 minutes stated across both. You charge, clip in and go, with no fuel to mix.
Brush cutters are usually gas. The voluker example runs a 58cc 2-cycle engine rated up to 9300 RPM. That gives it the torque to keep a blade turning in thick growth, at the cost of fuel mixing, noise and engine upkeep.
What each one can cut
A string trimmer handles lawn grass, soft weeds and edging along sidewalks and beds. A brush cutter handles all of that with its line head, then thick weeds, briars, shrubs and brushy edges with a blade. On a few acres the dividing line is simple: if the growth is green and soft, line works; if it has stems you could not snap by hand, use a blade.
Handling and weight
Cordless string trimmers are short, single-handed tools you can carry around the house all afternoon. Brush cutters are longer and heavier. The voluker uses a straight shaft, a U-handle and a shoulder strap to spread that weight across your body and keep the blade level. Neither listing states a weight, so compare in a store if weight matters to you.
Upkeep
A battery trimmer needs charged batteries, fresh spools and a clean guard. A gas brush cutter needs fresh mixed fuel, a spark plug and air filter in good shape, and blades kept sharp and balanced. The voluker kit ships with a spare spark plug, a spare starter rope and a mixing bottle.
The two examples
Acreage and terrain fit
Boltarc RT-01
voluker 58cc 4-in-1
The Acre Score explained
The Acre Score weighs five factors: performance (power, heads and what it can cut), build quality (shaft, handle and guard), value (what comes in the box), safety (certifications or operator controls the listing states) and warranty (years and coverage). A factor the listing does not state scores zero, which is why both examples score zero for warranty.
| Product | Acre Score | Perf. /35 | Build /25 | Value /25 | Safety /10 | Warranty /5 |
|---|---|---|---|---|---|---|
| Boltarc RT-01 | 9.4 | 26 | 19 | 21 | 0 | 0 |
| voluker 58cc 4-in-1 | 9.4 | 29 | 19 | 20 | 0 | 0 |
Scores run from 9.2 to 9.8: each product’s point total is placed on that range, so more points always means a higher score.
Many owners on acreage keep both: a battery trimmer for weekly edges near the house, and a gas brush cutter for the back fence line a few times a season. If you mow open ground, see our brush and field mowers for clearing larger areas.
Wear eye and hearing protection, long pants and sturdy footwear, and keep bystanders well back while the line or blade spins. Clear stones and debris first, and stop the engine or remove the battery before clearing the head. Refuel only with the engine off and cool. See OSHA landscaping safety. Read our Safety Disclaimer.
FAQ: mowing large lots
Can a string trimmer cut brush?
Only light, green growth. Nylon line handles grass and soft weeds, but woody stems wrap or shred it quickly. For briars, shrubs and saplings you need a blade, which means a brush cutter or a trimmer that the maker says accepts a blade attachment with the right guard and handle.
Can a brush cutter use trimmer line?
Most can. Kits like the voluker 58cc include a dual line bump feed head for grass plus metal blades for brush, and you swap heads as the job changes. Check the line size the head takes; the voluker listing states 0.08 in line on its bump feed head.
Is a brush cutter worth it on a few acres?
It is if you have fence lines, ditches or field edges that grow woody between visits. A string trimmer will not keep up with that growth. If your property is mostly mowed lawn with beds and walks, a battery string trimmer is lighter, quieter and does the job.
Which one is easier to handle?
A cordless string trimmer. It is shorter, lighter and starts with a trigger. A gas brush cutter is longer and heavier and needs a pull start, which is why it uses a U-handle and a shoulder strap. Set the strap so the head floats just above the ground.
What safety gear do I need for a brush cutter?
Eye protection or a face shield, hearing protection, long pants, gloves and sturdy boots. Keep people and pets well back, because blades throw debris and kick on rocks. Never remove the guard, and stop the engine before clearing a jammed blade.
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