Question 1

How do I know which cutting line diameter is right for my trimmer?

Accepted Answer

Check your machine's manual or the label on the cutting head — the correct diameter is always specified by the manufacturer. As a rule of thumb, electric and battery trimmers typically use 1.3 mm to 1.6 mm line, while petrol-powered machines and brush cutters handle 2.0 mm to 3.0 mm. Fitting the wrong diameter risks either constant snapping (too thin) or motor overload (too thick).

Question 2

Can I use a generic cutting line instead of the branded OEM spool?

Accepted Answer

Yes, but only if the diameter and spool format match your machine's specifications exactly. Generic line is often cheaper per metre and perfectly adequate for light domestic use. The risk is with pre-wound spool cassettes — cheap versions sometimes have inconsistent winding that causes the line to tangle or jam the feed mechanism. For bulk line on a reel, quality generic nylon is generally fine; for drop-in cassettes, OEM or a reputable brand like Makita or Stihl is safer.

Question 3

What's the difference between a string trimmer attachment and a brush cutter attachment?

Accepted Answer

A string trimmer attachment uses nylon line to cut grass and light weeds; a brush cutter attachment uses a metal blade to tackle heavier vegetation — brambles, thick scrub, and woody stems. Brush cutter attachments require a machine with a blade-rated gearbox and the appropriate safety guard. They're not interchangeable, and fitting a metal blade to a line-only machine is a safety hazard. If you need both functions, a multi-tool platform like the DeWALT SplitBoom is the most practical solution.

Question 4

Are DeWALT and Makita accessories compatible with each other?

Accepted Answer

No — DeWALT and Makita use different proprietary coupling systems and they are not cross-compatible. Each brand's multi-tool attachments only work with that brand's powerheads. Within each brand, compatibility can also vary by generation, so always verify your specific powerhead model number against the attachment's compatibility list before purchasing.

Question 5

Should I avoid buying brush cutter accessories from unknown brands?

Accepted Answer

For cutting line, unknown brands carry relatively low risk — the main concern is diameter accuracy and line quality. For mechanical components — cutting heads, throttle cables, extension poles — we'd be more cautious. Poorly made heads crack under impact, and a substandard throttle cable can fail mid-use or cause erratic speed control. Stick to recognised brands (Makita, Stihl, Bosch, DeWALT) for anything structural. The price difference rarely justifies the reliability risk.

Question 6

How often should I replace the cutting line on my string trimmer?

Accepted Answer

There's no fixed interval — it depends entirely on how often you use it and what you're cutting. A good indicator is when the line is consistently snapping before reaching its minimum working length, or when the auto-feed is struggling to advance new line. For a typical UK garden trimmed weekly during the growing season, a 25–30 m spool will last most of the summer. Buying a longer spool (50–100 m) at the start of the season is more economical than buying multiple short ones.

Question 7

Do brush cutter accessories in 2026 need to meet any UK safety standards?

Accepted Answer

Yes — accessories sold in the UK should comply with EN 60335-2-100 (the safety standard for garden machinery) and carry CE or UKCA marking. Metal blades in particular must meet specific impact and balance standards. Reputable brands like Makita, Stihl, and Bosch include this compliance as standard; if you're buying from an unfamiliar source, check the product listing for explicit mention of UKCA or CE certification before purchasing.

Brush Cutter & String Trimmer Accessories Price Comparison

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Brush Cutter & String Trimmer Accessories Price Comparison