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Trimmer line 3mm comparison 2026

The best 3 mm trimmer lines, compared.

Top pick: Oregon round 3.0 mm, 56 m – Highest score in this comparison, 9.4 out of 10, from 4,714 amazon.co.uk reviews. Best value: Oregon round 3.0 mm, 56 m – 56 m of round nylon at £18.78, with a one-year warranty and a 580 g pack weight. Updated October 2026.

Peter F.
Peter F.Editor

3 mm strimmer line is heavy-gauge nylon for a head whose manual allows 3.0 mm. Many cordless and plug-in strimmers stop at 1.6 mm or 2.0 mm, so the head decides whether this gauge will feed. If the manual stops below 3.0 mm, the nearer comparison is [trimmer line 2mm](/hub/lawn-and-garden-equipment/trimmer-line-2mm). Star line cuts on the edges and holds less material, so it can break or weld sooner. Duoline is round line with a carbon-loaded core and a flexible skin. None of them replaces a blade on wood. One cited manual holds about 6 m on a 10 cm head, so do not wind a whole spool in. The 169 m listing weighs less on the page than that 56 m spool, so its price per metre is not treated as confirmed. Oregon's UK pages call 3.0 mm a large-area landscaping size. Oregon head is capped at 3 mm on about 25–40 cc machines. If the line will not pass the eyelet, it is too thick.

3 mm strimmer line is heavy-gauge nylon for a head whose manual allows 3.0 mm. Many cordless and plug-in strimmers stop at 1.6 mm or 2.0 mm, so the head decides whether this gauge will feed.

Oregon round 3.0 mm, 56 m

Best overall

Oregon round 3.0 mm, 56 m
9.4/10∼ £19

26 products checked · 58 hrs invested · +18,400 readers

7 of 7: Best 3 mm trimmer lines compared

Swipe for more

1-2 of 7
Best overall
Oregon round 3.0 mm, 56 m
Oregon round 3.0 mm, 169 m
Oregon Duoline 3.0 mm, 120 m
Oregon star 3.0 mm, 15 m
Oregon round 3.0 mm, 15 m
Zeqeey star 3.0 mm, 50 m
Navoys 3 mm, 15 m
9.4/10
9.4/10
9.2/10
9.0/10
8.8/10
8.8/10
8.6/10
∼ £19
∼ £31
∼ £36
∼ £10
∼ £8
∼ £11
∼ £4
4.6(4,714)
4.6(4,714)
4.5(952)
4.4(4,810)
4.3(14,157)
4.3(59)
4.2(39)
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The best 3 mm trimmer lines in detail

Oregon round 3.0 mm, 56 m

Rank 1

Oregon round 3.0 mm, 56 m

∼£19

Our view

The 56 m Oregon spool balances useful capacity with a £18.78 price that is easier to justify than the largest packs. Its straightforward 3.0 mm round nylon should suit routine grass and weed cutting where the head is rated for this gauge. The listing states a one-year manufacturer warranty and a 580 g pack weight, with no conflict over the advertised diameter or length. Its 4.6 rating from 4,714 reviews looks strong, but that pool is shared with the 169 m listing and some comments name 2.0 mm line. One UK comment recommends soaking the line, though that is user experience rather than a universal fitting rule. This is our best value for regular users who want more than a 15 m trial pack without relying on the questionable 169 m specification.

Pros

  • Useful 56 m mid-size supply
  • Good balance of price and stated length
  • Simple round profile
  • One-year manufacturer warranty stated

Cons

  • Rating is shared with the 169 m variant
  • Some review text concerns thinner line
  • Still unsuitable where the manual limits diameter below 3.0 mm

Best for: Regular garden maintenance with a head explicitly rated for 3.0 mm line.

Less suitable: First-time 3.0 mm buyers who only need a small trial or users demanding variant-specific reviews.

Specifications

Model
Oregon round 3.0 mm, 56 m
Brand
Oregon
Price
∼£19
Customer rating
4.6/5(4,714)
Diameter
3.0 mm
Length
56 m
Shape
Round
Material
Nylon
Weight
580 g
Diameter agrees
Yes
Warranty
1 year
Colour
Yellow
Price per metre
34p/m

Common questions

How long is this Oregon round line?

The extract says 3 mm by 56 m, yellow nylon, model 69-370-Y, weight 580 g, and a one-year manufacturer warranty.

Is the 4.6 score only for 56 m?

No. The same 4.6 from 4,714 reviews and the same UK texts are on the 169 m listing. Some of those texts name 2.0 mm line.

Does a UK review mention soaking the line?

Yes. One UK text in this shared pool says to throw the line in a bucket of water and treats most breakages as pilot error.

Oregon round 3.0 mm, 169 m

Rank 2

Oregon round 3.0 mm, 169 m

∼£31

Our view

On paper, this £31.18 Oregon spool offers 169 m of 3.0 mm round nylon for high-volume use. That length would normally appeal to contractors or owners of large plots who want fewer repeat purchases. However, the listing gives a weight of 360 g, while the 56 m spool is listed at 580 g, so the specification contains a material inconsistency that prevents a confident value-per-metre comparison. The 4.6 rating from 4,714 reviews is also the same pool used for the 56 m pack, including comments about 2.0 mm line. A one-year manufacturer warranty is stated, but it does not resolve what quantity is actually represented by the weight field. Buy only after confirming the length and pack weight with the seller; otherwise the 56 m spool is the clearer bulk step.

Pros

  • Very long 169 m supply if the listing is accurate
  • Round nylon suits conventional winding
  • One-year manufacturer warranty stated
  • Lower upfront cost than buying several short Oregon packs

Cons

  • Listed 360 g weight conflicts with the heavier 56 m spool
  • Rating and reviews are shared across variants
  • Value per metre cannot be trusted from the current specification

Best for: High-volume users who obtain confirmation of the 169 m length and pack weight before purchase.

Less suitable: Buyers who need a verified bulk quantity or a clean variant-specific review record.

Specifications

Model
Oregon round 3.0 mm, 169 m
Brand
Oregon
Price
∼£31
Customer rating
4.6/5(4,714)
Diameter
3.0 mm
Length
169 m stated
Shape
Round
Material
Nylon
Weight
360 g
Diameter agrees
Yes
Warranty
1 year
Colour
Yellow

Common questions

What length does the listing claim?

The title and item length say 169 m at 3 mm, model 69-371-Y. The length-range field also says 0–169 m.

Why is the weight hard to trust?

This extract says 360 g. The 56 m Oregon round spool in the same category is listed at 580 g. The 169 m figure was not changed.

Are the reviews separate from the 56 m pack?

No. The star rating is the same 4.6 from 4,714, and the UK texts match the 56 m extract, including reviews that name 2.0 mm.

Oregon Duoline 3.0 mm, 120 m

Rank 3

Oregon Duoline 3.0 mm, 120 m

∼£36

Our view

The 120 m Oregon Duoline spool gives frequent users a substantial supply of 3.0 mm round line for thick grass, weeds and abrasive boundaries. Its dual-material construction combines a carbon-loaded core with an outer skin that Oregon claims reduces welding, making it the most work-focused option in this comparison. The 1.14 kg spool costs £36.47, so it makes more sense for a large garden or regular brush-cutter use than for occasional edging. UK feedback is not uniformly positive: some buyers praise its performance around concrete edges, while others describe the line as weak or return it for a thinner gauge. The 4.5 rating comes from a pool of 952 reviews that includes comments about other sizes, so it is not a clean test of this 3.0 mm spool alone. Provided your manual explicitly permits 3.0 mm line, this is our top pick for sustained work rather than the safest choice for a small domestic strimmer.

Pros

  • 120 m supply suits frequent or large-area work
  • Dual-material round construction
  • Outer skin is claimed to reduce line welding
  • Clear 3.0 mm specification in the listing

Cons

  • £36.47 is a large outlay for occasional trimming
  • Some UK buyers report weakness or prefer a thinner gauge
  • Shared review material includes other line sizes

Best for: Large gardens and regular brush-cutter work where the machine manual explicitly allows 3.0 mm line.

Less suitable: Small domestic strimmers, occasional edging and any head with a maximum below 3.0 mm.

Specifications

Model
Oregon Duoline 3.0 mm, 120 m
Brand
Oregon
Price
∼£36
Customer rating
4.5/5(952)
Diameter
3.0 mm
Length
120 m
Shape
Round Duoline
Material
Carbon core, skin
Weight
1140 g
Diameter agrees
Yes
Colour
Multicolour
Price per metre
30p/m

Common questions

What diameter and length is this Oregon spool?

The title and size field say 3.0 mm by 120 m, model 106504E. A separate listing field says a cutting width of 3 centimetres, which does not match that diameter.

What is the line made of?

The listing describes a dual-material round line with a carbon-loaded core and an anti-weld surface. The up to 30 percent more durable sentence is a listing claim.

Does the listing prove it fits every strimmer?

No. The bullet names several brands and says standard heads. That is a listing sentence. The manual still sets the maximum diameter.

Oregon star 3.0 mm, 15 m

Rank 4

Oregon star 3.0 mm, 15 m

∼£10

Our view

Oregon's 15 m star line gives a 3.0 mm-compatible head five defined edges for cutting medium grass, long grass and weeds. It costs £9.60, so the short pack is a practical trial if you want to compare shaped line with ordinary round nylon. One UK allotment user reported that a pack lasted 18 months with fortnightly use on two plots, showing the potential when the line and head work well together. Another buyer used the same 15 m in about ten minutes, which shows how sharply results can change with the machine, vegetation and feed. The 4.4 score from 4,810 reviews is shared with other star-line gauges rather than isolated to this pack. It is a sensible shaped-line choice for a head that already feeds star cord cleanly, but not for a machine that has welded or jammed shaped line before.

Pros

  • Five-edge star profile for grass and weeds
  • 15 m pack limits the cost of trying shaped line
  • Strong long-term allotment report in the UK feedback
  • Diameter and length are clearly stated

Cons

  • Another UK buyer consumed 15 m in about ten minutes
  • Review pool covers other star-line gauges
  • Shaped line may weld or feed poorly in some heads

Best for: Compatible heads that have previously fed shaped line cleanly, especially for weeds and longer grass.

Less suitable: Heads prone to welding, small electric strimmers or users who prioritise maximum nylon volume.

Specifications

Model
Oregon star 3.0 mm, 15 m
Brand
Oregon
Price
∼£10
Customer rating
4.4/5(4,810)
Diameter
3.0 mm
Length
15 m
Shape
Five-edge star
Material
Nylon, aluminium
Weight
110 g
Diameter agrees
Yes
Colour
Multicolour
Price per metre
64p/m

Common questions

What shape is this Oregon line?

The listing says a star with five cutting edges, 3.0 mm, style name 15 m, model 110986E. It also claims aluminium particles in the nylon.

How long did 15 m last in the UK reviews?

One allotment review says a pack lasted 18 months of fortnightly use on two plots. Another says 15 m went in about ten minutes in a small garden. Both are in the extract.

Will it fit a small electric strimmer?

The listing says standard heads and names several brands. One UK reviewer wondered if it was too thick for a Black+Decker. The machine manual is the limit, not the bullet.

Oregon round 3.0 mm, 15 m

Rank 5

Oregon round 3.0 mm, 15 m

Our view

This 15 m Oregon pack is a manageable way to try 3.0 mm round nylon without storing a trade-size spool. At £7.79 and 140 g, it suits occasional refills and lets you confirm how the line feeds before committing to 56 m or more. The listing consistently identifies the product as 3.0 mm by 15 m and states a one-year manufacturer warranty. Its 4.3 rating is backed by a very large 14,157-review family pool, but the visible comments also discuss 2.4 mm and 1.65 mm variants. That makes the rating useful as broad brand-family evidence rather than a verdict on this exact pack. Choose it for low-volume use on an approved head, but expect poorer value per metre than the larger Oregon spools.

Pros

  • Low-cost 15 m pack for an initial refill
  • Simple round nylon is easy to wind
  • One-year manufacturer warranty stated
  • Diameter and length agree across the main listing fields

Cons

  • Less economical per metre than larger packs
  • Review pool includes thinner line variants
  • 15 m may run out quickly in abrasive conditions

Best for: Occasional users who want to trial 3.0 mm round line in a compatible head.

Less suitable: Large plots, frequent clearing or buyers seeking reliable model-specific review evidence.

Specifications

Model
Oregon round 3.0 mm, 15 m
Brand
Oregon
Price
∼£8
Customer rating
4.3/5(14,157)
Diameter
3.0 mm
Length
15 m
Shape
Round
Material
Nylon
Weight
140 g
Diameter agrees
Yes
Warranty
1 year
Colour
Yellow
Price per metre
52p/m

Common questions

How much line is in this pack?

The size field says 3.0 mm by 15 m, yellow round nylon, model 69-368-YE. The extract weight is 140 g.

Is a warranty stated?

Yes. The extract says a one-year manufacturer warranty.

Are the 14,157 reviews only about this 15 m spool?

The extract's opening UK reviews also discuss 2.4 mm and 1.65 mm. Treat 4.3 from 14,157 as the variation family, not this length alone.

Zeqeey star 3.0 mm, 50 m

Rank 6

Zeqeey star 3.0 mm, 50 m

∼£11

Our view

The Zeqeey spool supplies 50 m of 3.0 mm star nylon for £10.99, making it an inexpensive way to buy substantially more shaped line than the 15 m Oregon pack. Three UK reviewers describe it as strong and good value, and one used it on both grass and briars. That same feedback says durability fell on the briars, so the aggressive profile does not guarantee long life in woody growth. The 4.3 rating is based on 59 reviews, while only three visible comments in the extract are from UK buyers. The listing also makes a broad lawn-mower compatibility claim that should not replace the diameter limit in your head manual. It suits a compatible strimmer where you already know star line feeds cleanly, but the evidence is thinner than for the established Oregon packs.

Pros

  • 50 m of star line for £10.99
  • Positive UK comments on strength and value
  • Clear 3.0 mm and 50 m specification
  • Star profile for grass and weeds

Cons

  • Only three UK review texts in the extract
  • Reported durability drops on briars
  • Broad lawn-mower fit claim is not proof of compatibility

Best for: Value-conscious users whose 3.0 mm-compatible head already works well with star line.

Less suitable: Heavy briar clearing, heads prone to welding or buyers wanting a large UK evidence base.

Specifications

Model
Zeqeey star 3.0 mm, 50 m
Brand
Zeqeey
Price
∼£11
Customer rating
4.3/5(59)
Diameter
3.0 mm
Length
50 m
Shape
Star
Material
Nylon
Weight
310 g
Diameter agrees
Yes
Price per metre
22p/m

Common questions

What size is this star line?

The listing says 3.0 mm, also printed as 0.12 inch, and 50 m, also printed as 164 ft. The extract weight is 310 g and the model is 3501060401.

What did UK buyers say?

Three UK texts call it good value and strong. One of them used it on grass and briars and said it was less durable on the briars. Later reviews are from outside the UK.

Does the listing say it fits a lawn mower?

Yes, the bullets say lawn mowers as well as trimmers. The product is still a 3.0 mm star cord. The head has to accept that diameter.

Navoys 3 mm, 15 m

Rank 7

Navoys 3 mm, 15 m

Our view

At £4.29 for a stated 15 m, the Navoys pack is the cheapest entry in this comparison. The problem is that the listing does not establish what you will receive: the title says 3 mm, one bullet says 1.65 mm and another highlight mentions 2.4 mm. Its 4.2 rating comes from only 39 reviews, and one visible review is unrelated to strimmer line. The relevant UK feedback is also mixed, ranging from 'did the job' to five breaks in five minutes. A low purchase price cannot compensate for uncertainty over the diameter, because the head and motor limits depend on that measurement. We would wait for the seller to correct the specification rather than treat this as a dependable budget 3.0 mm option.

Pros

  • Lowest listed price in the comparison
  • Compact 15 m quantity
  • Some UK buyers say it completed the job

Cons

  • Listing conflicts between 3 mm, 1.65 mm and 2.4 mm
  • Small and partly irrelevant review pool
  • One UK buyer reports repeated breakage

Best for: Buyers prepared to confirm the actual diameter with the seller before ordering.

Less suitable: Anyone who needs a verified 3.0 mm line or wants predictable durability.

Specifications

Model
Navoys 3 mm, 15 m
Brand
Navoys
Price
∼£4
Customer rating
4.2/5(39)
Diameter
3 / 1.65 / 2.4 mm
Length
15 m
Shape
Round claimed
Material
Nylon claimed
Weight
130 g
Diameter agrees
No
Colour
White
Price per metre
29p/m

Common questions

Is this definitely 3 mm line?

The title, style name, and size say 3 mm by 15 m. A bullet says 1.65 mm, and a highlight mentions a 2.4 mm option. The extract does not resolve that.

What did UK reviewers say?

One called it strong so far and said to check it fits. One said it did the job. One said it broke five times in five minutes. Another review is about drilling a door.

Is a warranty listed?

No warranty period is in the extract.

How we compared

For this comparison we read seven amazon.co.uk spools stated as 3.0 mm and the public UK sources below. Scores follow the display rating on each listing. We did not run a laboratory test. A sentence that says universal fit is not treated as proof that the head accepts 3.0 mm.

1

Maximum diameter

30%

The manual, head label or guard sets the ceiling. Up to 3 mm is a limit, and Oregon head 108461A is capped at 3 mm on about 25–40 cc machines.

2

Head and capacity

20%

If 3.0 mm will not pass the eyelet, it is too thick. A 50–169 m pack is a shelf refill. One manual cites about 6 m on a 10 cm head.

3

Shape

20%

Round nylon for grass. Star cuts on the edges and holds less material, so it can break or weld sooner. Duoline is round line with a carbon-loaded core and a flexible skin.

4

Length and listing honesty

15%

A 15 m donut is a top-up. Conflicting diameter sentences, and a star rating shared across lengths, are one listing problem, not two products.

5

Shelf price

15%

Prices are the amazon.co.uk figures on 16 October 2026, from about £4.29 to £36.47. Pence per metre is arithmetic on those figures, except where the pack weight disagrees with the length.

Independent review
Last updated: October 2026
8 sources checked

3 mm trimmer line buying guide

Match the diameter to the manual, then the shape to the vegetation, then the pack length to how often you refill. A low price does not fix a second diameter in the same listing.

What is 3 mm trimmer line?

A 3.0 mm strimmer line is heavy-gauge nylon for a head whose manual, label or guard allows that diameter. Oregon's UK pages call 3.0 mm a large-area landscaping size. Many cordless and plug-in strimmers stop at 1.6 mm or 2.0 mm. Up to 3 mm is a ceiling. Oregon head 108461A is capped at 3 mm on about 25–40 cc machines. If the line will not pass the eyelet, it is too thick.

Best for

  • A head whose manual already allows 3.0 mm
  • Grass, weeds or nettles on a guarded strimmer

Not ideal for

  • A strimmer capped at 1.6 mm or 2.0 mm
  • Wood, wire, or a chain flail in place of nylon

Mistakes to avoid

  1. 1

    Ignoring the maximum

    A universal-fit bullet does not raise the head limit. If 3.0 mm will not pass the eyelet, it is too thick for that machine.

  2. 2

    Overfilling the head

    A 50–169 m pack is a shelf refill. One manual cites about 6 m on a 10 cm head. Wind with the arrow and keep the tails equal.

  3. 3

    Reading a shared review pool as one length

    The 56 m and 169 m Oregon round listings share 4.6 from 4,714 reviews. Some of those texts name 2.0 mm line.

What to weigh up

Maximum diameter

High

Diameter is the first cut because a line that is too thick will not feed, and a line that is forced in loads the head and the guard. Read the manual, the head label or the guard before any universal-fit sentence. Up to 3 mm means 3 mm is the ceiling. Oregon head 108461A is an example of a head capped at 3 mm, stated for about 25–40 cc machines. In this set, six listings agree on 3.0 mm in the main fields. The Navoys title says 3 mm, a bullet says 1.65 mm, and a highlight mentions 2.4 mm.

Shape for the vegetation

High

Shape is the second cut once the diameter is allowed. Round nylon, including the Oregon 15 m, 56 m and 169 m packs and the Navoys title, keeps a full cross-section and suits ordinary grass. A five-point star, Oregon 110986E at 15 m and Zeqeey at 50 m, cuts on the edges and holds less material, so it can break or weld sooner. One UK allotment text on the Oregon star says a pack lasted 18 months of fortnightly use. Another says 15 m went in about ten minutes.

Which option suits you?

Three typical situations, each with a recommendation from this comparison.

Household grass

Your manual allows 3.0 mm and you cut ordinary grass. A short round spool is the trial pack. The Oregon round 15 m is £7.79, model 69-368-YE, with a one-year warranty on the listing.

Allotment and thick grass

A petrol machine rated for 3.0 mm, with nettles and thick grass. Star line is the shaped option, with the guard on. It is not a blade. The Oregon star 15 m is £9.60, model 110986E.

Regular large plots

You already know the maximum diameter and the head capacity. The Oregon Duoline 120 m is the long dual-material spool at £36.47 for frequent work, not for a small domestic strimmer.

Common questions about 3 mm trimmer lines

Which 3 mm trimmer line is the top pick?
The top pick is the Oregon Duoline 3.0 mm, 120 m, model 106504E, for regular work where the manual already allows 3.0 mm. It is round line with a carbon-loaded core and a flexible skin, listed at £36.47, with 4.5 from 952 reviews. Some of those reviews name other sizes. Up to 30 percent more durable is a listing claim. Skip it for a small domestic strimmer or a head capped below 3.0 mm.
How much does 3 mm trimmer line cost on amazon.co.uk?
On 16 October 2026 the seven listings run from about £4.29 to £36.47. Short packs: Navoys 15 m at £4.29, Oregon round 15 m at £7.79, Oregon star 15 m at £9.60. Mid length: Zeqeey star 50 m at £10.99 and Oregon round 56 m at £18.78. Long spools: Oregon round 169 m at £31.18 and Duoline 120 m at £36.47. Pence per metre on the printed length is about 29p, 52p, 64p, 22p, 34p and 30p. The 169 m figure is not used, because that pack is listed lighter than the 56 m spool.
What should you check before you buy 3 mm line?
Check the maximum diameter first. The manual, head label or guard beats a universal-fit bullet. Then check that 3.0 mm will pass the eyelet, and that you are not winding a whole 50–169 m pack into the head. Choose round nylon for grass, or star or Duoline for thicker growth. Read the listing for a second diameter. A shared star rating is one review pool, not proof about one length.
Should you buy round, star or Duoline?
Buy round nylon for ordinary grass. It keeps a full cross-section. Buy a five-point star when you want edges on grass and weeds, and accept that it holds less material, so it can break or weld sooner. Duoline is still round: a carbon-loaded core and a flexible skin, marketed against breakage and bonding in the head. Do not treat star as longer-lasting, and do not treat Duoline's durability line as a measured result. None of them replaces a blade on wood.
Will 3.0 mm line fit every strimmer?
No. Many cordless and plug-in strimmers stop at 1.6 mm or 2.0 mm. Up to 3 mm is a ceiling. Oregon head 108461A is capped at 3 mm on about 25–40 cc machines. If the line will not pass the eyelet, it is too thick. A brand list on the spool is a listing sentence. The machine manual still sets the maximum.
Is the 169 m Oregon spool the cheapest per metre?
Do not treat it as confirmed. The title says 169 m at £31.18, model 69-371-Y, which would be about 18p per metre on the printed length. The extract weight is 360 g. The 56 m Oregon round spool is listed at 580 g. Until the length and the weight agree, the 56 m spool at £18.78 is the clearer bulk step. Both ASINs share 4.6 from 4,714 reviews.
What safety rules apply, and can you reject the wrong cord?
Do not fit wire. HSE says nylon line and single-piece blades are in scope, and chain flails should come off. Keep the maker's guard on. Eye protection is the household minimum. At work, the Control of Noise at Work Regulations 2005 use 80 and 85 dB(A) action values and an 87 dB(A) limit. Mower noise duties are covered in lawn mower noise rules. HSE INDG480 starts a strimmer at 7 m/s². If the cord is not as described, the Consumer Rights Act 2015 short-term right to reject normally runs 30 days.

Our verdict

The top pick is Oregon round 3.0 mm, 56 m, with the highest score in this comparison (9.4 out of 10, from 4,714 amazon.co.uk reviews). If you want a mid-length round spool with a stated one-year warranty, the best value is the Oregon round 56 m, model 69-370-Y, at £18.78 and 580 g. The 169 m listing shares that 4.6 from 4,714 reviews and is listed at 360 g, so its price per metre is not treated as confirmed. The Navoys title says 3 mm while a bullet says 1.65 mm.

Best overall
Oregon round 3.0 mm, 56 m

Oregon round 3.0 mm, 56 m

Highest score in this comparison, 9.4 out of 10, from 4,714 amazon.co.uk reviews.

View offer
Best value
Oregon round 3.0 mm, 56 m

Oregon round 3.0 mm, 56 m

56 m of round nylon at £18.78, with a one-year warranty and a 580 g pack weight.

View offer

Editorial

Peter F. - DIY & tools editor
DIY & tools editor
DIY & toolsamazon.co.uk listingsLawn and garden equipment

Peter F. is the editor for DIY & tools at productscompared.co.uk. Comparisons in this category are checked against amazon.co.uk listings, review evidence and public UK sources.

Updated: October 2026
8 sources checked

Guides to 3 mm trimmer lines

Guides on what to look for, how to use a product, and common mistakes.

Related comparisons

Sources

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

  1. Oregon UK, Duoline 3.0 mm x 120 m (106504E) (retrieved 16 October 2026)
  2. Oregon UK, head capped at 3 mm (108461A) (retrieved 16 October 2026)
  3. HSE, brush cutters and chain flails (retrieved 16 October 2026)
  4. ISO 11806-1:2022, brush-cutters and grass-trimmers (retrieved 16 October 2026)
  5. HSE INDG480, hand-arm vibration (retrieved 16 October 2026)
  6. Control of Noise at Work Regulations 2005 (retrieved 16 October 2026)
  7. Consumer Rights Act 2015, section 22 (retrieved 16 October 2026)
  8. amazon.co.uk listings for the ASINs in this comparison (retrieved 16 October 2026)

This page contains affiliate links to amazon.co.uk with the tag pcuk26-21. If you buy through them, we may earn a commission at no extra cost to you. Prices, stars and review counts come from the amazon.co.uk listings. We did not run a laboratory test, and we do not promise the cheapest price.