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Brush cutter vs strimmer: choose the right cutting head

Updated: October 2026

The practical brush cutter vs strimmer decision appears when ordinary line meets something it cannot cut. A strimmer is suited to lawn edges, grass and softer weeds. A brush cutter can accept a rigid blade for dense grass and brambles. Retailers sometimes use both names loosely, and several products in the [Stihl brush cutter comparison](/hub/lawn-and-garden-equipment/stihl-brush-cutter) include line and blade heads. The label on the listing is less useful than the approved attachment, the guard and the job. Start with the stem in front of you, then buy only a machine designed to turn the head it needs. A qualifying purchase can earn us a commission at no extra cost to you.

The practical brush cutter vs strimmer decision appears when ordinary line meets something it cannot cut. A strimmer is suited to lawn edges, grass and softer weeds.

Our top picks

Bosch Bosch AFS 23-37

Best overall

Bosch Bosch AFS 23-37
9.2/10about £124.90
Einhell Einhell Agillo 36/255

Preis-Tipp

Einhell Einhell Agillo 36/255
8.6/10about £158.99
On this page

What each name means in the UK

Strimmer is the familiar British name for a powered line trimmer, although STIHL often says grass trimmer. Nylon line cuts grass and light weeds, reaches lawn edges and is more forgiving near obstacles than a steel blade. For weekly edging, the lighter tool is an advantage. A brush cutter is built to handle a blade and, in many cases, a line head. A straight shaft is not proof that any blade will fit. The manual must list the attachment and its matching guard. The Bosch AFS 23-37, the Ryobi OBC1820B, the Einhell Agillo models and the Greenworks kit describe both blade and line equipment. One power unit can do both jobs after a correct head change. That does not make the names meaningless. The SUAIIOLK listing claims several small blades but gives no cutting width, and reviewers mention soft blades. An accessory disc is not an FS-class brush-cutter blade.

Edges, nettles and brambles

Use nylon line for lawn edges, grass around trees and softer weeds. It can work close to a fence or kerb, although masonry consumes line quickly. If line snaps in ordinary grass, check the diameter, age, spool loading and allowed length before changing to metal. Excess line can unbalance the head. Heavier approved line may be enough for coarse grass and young nettles. STIHL's guide also shows PolyCut polymer blades and DuroCut line pieces between a spool and a metal grass blade. Compatibility stays model-specific. A metal grass blade is the step when dense growth repeatedly defeats line. UK reviewers praise the Bosch and Einhell 36/255 blades on established nettles and brambles. Mature woody stems may still exceed the stated capacity, and hidden stone can bend the blade. The brush cutter buying guide covers power and harness fit once the head is decided.
Bosch Bosch AFS 23-37

Testsieger

Bosch Bosch AFS 23-37
9.2/10about £124.90

Where a metal blade is the wrong head

Steel is a poor choice beside greenhouse glass, a parked car, rendered walls or paving. A hard strike can damage the blade, throw debris or kick through the shaft. Nylon line can still throw stones, but it is the more controllable head for edges. Keep the specified guard fitted. Hidden wire is dangerous in neglected boundaries. Walk the site and remove what you can while the machine is isolated. Do not fit chains, flails or improvised metal heads. A circular saw blade is not the automatic next step. If the manual does not list it, use loppers, a pruning saw or a clearing saw. A GrassCut 230-2 supplied for a particular STIHL FS model is not permission to mount that style on any Amazon strimmer. Do not remove the guard because a blade looks too large. Isolate the engine, lead or battery before clearing wound vegetation.

Which way to buy

Buy a line-focused strimmer for edging, grass around furniture and light weeds near hard surfaces. Thicker line or an approved polymer head adds range without moving straight to steel. A season of brambles will still consume line. Buy a brush cutter with a listed metal blade if dense grass, nettles and brambles are regular jobs, and prefer a package that also includes a line head. The Bosch combines a 23 cm blade with 37 cm line. The Greenworks title describes a 25 cm blade and a 40 cm line path. A harness matters on heavier machines, and a body-only battery price may omit the packs. Stay with line for edges and obstacle-rich spaces. Choose a blade-capable brush cutter for recurring coarse growth. If woody stems exceed the manual, move to an approved clearing tool.

Common questions

Are a brush cutter and a strimmer the same tool?
Not exactly. A strimmer generally uses nylon line for grass and edges, while a brush cutter is designed to accept a rigid blade for tougher vegetation. Some machines perform both jobs with approved interchangeable heads.
Can I fit a metal blade to any strimmer?
No. The manufacturer must approve the blade, the fixing, the guard and the handle arrangement for that exact model. A blade that physically fits can still overload the drive or create an unsafe setup.
Is nylon line enough for nettles?
Line can handle young or sparse nettles, especially in a heavier approved diameter. Mature dense patches often cut more efficiently with a metal grass blade or a suitable polymer system. Inspect for obstacles before changing heads.
Why does my line keep breaking?
Common reasons include line that is too thin or old, incorrect spool loading, repeated contact with masonry and asking line to cut woody stems. Check the manual's diameter and loading instructions before assuming the motor is at fault.
Is a 5-in-1 machine a real brush cutter?
It can perform brush-cutting work if it has an approved blade, guard and drive for that task. Extra hedge and pruning attachments do not prove brush-cutting quality. The eSkde 5-in-1, at £143.99, also has review complaints about starting and vibration, and its stored rating is 3.7 from 279 reviews.
What should I use beside a greenhouse or a car?
Use line with the proper guard, maintain generous clearance and direct debris away from glass and paint. Remove loose stones first. Even line can throw material, so hand trimming may be safer in very tight spaces.
When do I need a clearing saw?
Consider one when repeated woody stems exceed the stated capability of an ordinary grass blade. Use a machine and saw attachment explicitly approved for the stem size. Do not convert a garden strimmer with an unlisted circular blade.

Related pages

Sources

Sources checked for this comparison; last retrieved on 16 October 2026.

  1. STIHL UK, guide to grass trimmers, brushcutters and clearing saws (retrieved 16 October 2026)
  2. STIHL UK, FS 55 petrol brushcutter (retrieved 16 October 2026)
  3. HSE, hand-arm vibration in forestry (retrieved 16 October 2026)
  4. HSE INDG480, hand-arm vibration (retrieved 16 October 2026)
  5. Control of Vibration at Work Regulations 2005 (retrieved 16 October 2026)
  6. Control of Noise at Work Regulations 2005 (retrieved 16 October 2026)
  7. ISO 11806-1:2022, combustion-engine brush cutters (retrieved 16 October 2026)
  8. amazon.co.uk search, stihl bush cutter, 16 October 2026 (retrieved 16 October 2026)