Small lawn, round line
You have a mains or cordless trimmer marked for this thin class, and you want round line for ordinary grass rather than a shaped profile. A short refill is enough if you do not edge paving every week.
1.6 mm strimmer line comparison 2026
The best 1.6 mm strimmer lines, compared.
Top pick: ASOENTIWOX (Round, 100 m) Best value: FEPITO (Round, 30 m) – Best value at about £3.79: lowest shelf price among large, agreed 1.6 mm listings with a named profile, score 78, with snap comments on hard edges. Updated 22 October 2026.
A 1.6 mm strimmer line is the thin nylon cord many domestic electric and cordless grass trimmers in the UK are built to feed. You buy it to edge a lawn and to cut light weeds. It is not a brushcutter blade. Match the diameter on the manual and on the eyelet first. The job in the garden comes second. A suitable spool states one diameter in this thin class, a profile the head can feed, and a length you will store. Round line is the usual feed. Star line is a more aggressive profile when the head will take it. A short donut and a long reel are the same cutting width, because a spool holds only a few metres. Line thicker than the manual feeds badly and loads the motor. Dried nylon from a hot shed goes brittle. Some listings print 1.65 mm or 0.065 inch beside 1.6 mm. Confirm the head is in that thin class before you treat the figures as the same. The checks are in the [1.6 mm strimmer line buying guide](/hub/lawn-and-garden-equipment/1-6mm-strimmer-line/sub/1-6mm-strimmer-line-buying-guide).
A 1.6 mm strimmer line is the thin nylon cord many domestic electric and cordless grass trimmers in the UK are built to feed. You buy it to edge a lawn and to cut light weeds. It is not a brushcutter blade.
28 products checked · 58 hrs invested · +21,400 readers
8 of 8: Best 1.6 mm strimmer lines compared
Swipe for more
1-2 of 8Best overall
Best value
7.2/10
7.0/10
7.6/10
7.2/10
8.0/10
7.8/10
6.7/10
4.6/10
∼ £7
∼ £11
∼ £9
∼ £8
∼ £6
∼ £4
∼ £11
∼ £5
4.8(43)
4.6(7,316)
4.5(1,102)
4.4(4,810)
4.4(2,558)
4.4(1,260)
4.3(172)
3.7(3)
Personal buying guide
Which 1.6 mm strimmer line fits?
Question 1 of 2
What does the head need to cut?
The best 1.6 mm strimmer lines in detail
Our view
ASOENTIWOX sells blue round nylon at 1.6 mm by 100 m for £6.98, model EHJI652, and the title points at electric trimmers. The star line is 4.8 from 43 ratings, and five UK reviews in the saved listing praise value, threading, and ordinary strength, with no snap described. The listing is clean on paper: round, 100 m, 210 g, and no brand list that pretends to fit every head. Forty-three ratings are still a small sample next to SOL’s 2,558 or FEPITO’s 1,260, so the 4.8 does not outrank those files in this method. The bullets say the line is not easy to break, which is a seller sentence rather than a test. It suits you if you want a long round reel under £7 and you treat a few dozen ratings as a hint. It is the wrong spool if you are buying because 4.8 looks like a lab result.
Pros
- Round 1.6 mm by 100 m, with the title and the details in agreement
- £6.98 in this capture
- Captured UK reviews say it threads easily
- The review sample does not describe a different diameter
Cons
- 4.8 from only 43 ratings
- Five UK texts, so durability is barely described
- “Not easy to break” is a seller claim
Best for: You want 100 m of round 1.6 mm line and you treat 43 ratings as a hint, not a proof.
Less suitable: You need thousands of reviews, or a petrol trimmer the title does not mention.
Specifications
- Model
- ASOENTIWOX (Round, 100 m)
- Brand
- ASOENTIWOX
- Price
- ∼£7
- Customer rating
- 4.8/5(43)
- Diameter
- 1.6 mm
- Profile
- Round
- Length
- 100 m
- Pack
- 1
- Material
- Nylon
- Weight
- 210 g
- Colour
- Blue
Common questions
Is the line round, and how long is the spool?
The title says blue round nylon, 1.6 mm by 100 m, for electric trimmers. The model number in the saved listing is EHJI652.
What do the captured reviews say?
Five UK reviews are in the saved listing. They say it threads easily and is good value. The star line is 4.8 from 43 ratings, which is a small sample.
Our view
Viabrico is titled 200 m by 1.6 mm nylon at £10.99, with 4.6 from 7,316 reviews, the largest count in the set, and the title is the length and the diameter to trust. UK reviews in the sample praise cutting and value, and some say the bump feed advances on a petrol trimmer, but other texts describe square line, 2.4 mm, or 380 m and 390 m. Those details belong to other variants, so 7,316 is not a clean verdict on this reel, and the profile is not stated. A bullet claims an aerodynamic design raises cutting efficiency by 30 percent, and that figure was not measured here. The item weight is 690 g, which fits a long reel and does not fit a 15 m donut. The title says electric, while the bullets also say gas and electric. It can be the long-stock option when the live page still says 200 m by 1.6 mm and you ignore reviews that describe another shape, and it is the wrong page to trust if you are buying square line or a 380 m reel because a review said so.
Pros
- The title states 200 m by 1.6 mm at £10.99
- 4.6 from 7,316 reviews, with praise for value against short shop reels
- 690 g, in line with a long nylon reel
- Some reviews report bump feed on petrol trimmers
Cons
- Review texts describe square line, 2.4 mm, and 380 m, which conflict with the title
- The profile is not stated
- The 30 percent efficiency line is a seller claim
- The star count alone does not show which variant people received
Best for: The live title is 200 m by 1.6 mm and you want bulk stock rather than a 15 m donut.
Less suitable: You are following a review that says square, 2.4 mm, or 380 m.
Specifications
- Model
- Viabrico (200 m title)
- Brand
- Viabrico
- Price
- ∼£11
- Customer rating
- 4.6/5(7,316)
- Diameter
- 1.6 mm
- Profile
- Not stated
- Length
- 200 m
- Pack
- 1
- Material
- Nylon
- Weight
- 690 g
Common questions
What length should you trust?
The title says 200 m x 1.6 mm. Some UK reviews mention 380 m or 390 m, or a square line. Use the title, and check the live page, rather than those reviews.
Is the 30 percent efficiency claim a test result?
No. It is a sentence in the listing bullets. This comparison did not measure cutting efficiency.
Our view
Oregon’s round line is titled 1.65 mm by 15 m at £8.69, while the size field says 1.6 mm by 15 m, so check the manual before you treat the two figures as the same. The amazon.co.uk line is 4.5 from 1,102 reviews, the highest stars among the large samples that are not mixed with another diameter. Reviewers say it lasts longer than their usual nylon and cuts grass and light weeds, and one working gardener compared it with the 2 mm line they normally use. The same file includes people who still snap a large share of a roll on one garden, including after a pre-soak, and one note that the free end was no longer taped so the donut had to be taken apart. The bullets claim up to 10 percent less noise and up to 25 percent longer run time than standard round line, and those percentages were not measured for this comparison. At 60 g it is a short donut, not a bulk reel. It is the strongest branded round option here when the head is in the thin class and you accept the title clash, and a weak buy if you wanted a proved quieter line or a 100 m refill.
Pros
- Round Oregon line, 15 m, with 4.5 from 1,102 reviews
- The size field states 1.6 mm even though the title says 1.65 mm
- Reviewers report a cleaner cut than the line that came with the machine
- Aluminium-particle nylon is stated in the bullets
Cons
- The title and the size field disagree on 1.65 mm versus 1.6 mm
- UK reviews include repeated snaps, including after soaking
- The noise and runtime percentages are seller claims
- 15 m at £8.69 is a short length for the price
Best for: You want branded round line in the thin class and you have checked 1.65 mm against the manual.
Less suitable: You need one agreed diameter on the page, or a long reel for weekly edging.
Specifications
- Model
- Oregon (Round, 15 m)
- Brand
- Oregon
- Price
- ∼£9
- Customer rating
- 4.5/5(1,102)
- Diameter
- 1.65 mm / 1.6 mm
- Profile
- Round
- Length
- 15 m
- Pack
- 1
- Material
- Nylon
- Weight
- 60 g
- Colour
- Black
Common questions
Is this 1.6 mm or 1.65 mm?
The title says 1.65 mm x 15 m. The size field says 1.6 mm x 15 m. Check the manual before you treat them as the same.
Does the listing prove it is quieter?
The bullets claim up to 10 percent less noise and up to 25 percent longer run time than standard round line. Those figures are seller claims. This comparison did not measure them.
Our view
Oregon’s star line is titled 1.6 mm by 15 m, with five cutting edges, on a donut spool at £8.28, and the listing shows 4.4 from 4,810 reviews. Reviewers who are clearly talking about grass say a pack lasts through repeated cutting, including an allotment user who reported many months from one pack, and some say it cuts denser grass than their usual line. Other UK texts call it 2.4 mm square or say it was too thick for auto-feed, and those sentences conflict with this title, so they are not the specification. That mix is why a count of 4,810 does not win the score on its own. The bullets name aluminium particles in the nylon and a long list of trimmer brands, and neither line is a measured life or a measured fit. At 50 g and 15 m it is a short donut, and one review says a small garden used the whole length very quickly. Choose it when the head can take star line at 1.6 mm and you want that profile rather than a 100 m generic reel, and leave it if you are trusting a review that describes square 2.4 mm line.
Pros
- Star profile with five edges, 1.6 mm by 15 m on the title and the size field
- 4.4 from 4,810 reviews, with praise for longer grass
- Oregon nylon with aluminium particles is stated in the bullets
- Donut spool at £8.28 in this capture
Cons
- Some reviews describe 2.4 mm square line, which is a different product
- 15 m is used up quickly if the line is snapping
- The brand list in the bullets is not a tested fit
Best for: Your manual allows 1.6 mm star line and you want a short named donut for medium grass.
Less suitable: You need 100 m of round line, or you are matching a review that says 2.4 mm square.
Specifications
- Model
- Oregon (Star, 15 m)
- Brand
- Oregon
- Price
- ∼£8
- Customer rating
- 4.4/5(4,810)
- Diameter
- 1.6 mm
- Profile
- Star, 5 edges
- Length
- 15 m
- Pack
- 1
- Material
- Nylon
- Weight
- 50 g
- Colour
- Multi
Common questions
What profile and length does the title state?
The title is Oregon star line, 1.6 mm by 15 m. The bullets say five cutting edges and a donut spool.
Do the reviews all describe this 1.6 mm star line?
No. Some UK texts describe a 2.4 mm square line or say it was too thick for auto-feed. Those sentences conflict with this title, so they are not the spec.
Our view
SOL’s two-pack is listed at £5.99 with 4.4 from 2,558 amazon.co.uk reviews, the largest review file in this set whose texts are not describing a different diameter. The title says 1.6 mm and 40 m, while the size field says 20 m by 1.6 mm with a pack count of 2, so read it as two 20 m lengths unless the live page says otherwise. UK reviews are mostly one sentence, and they repeatedly say it fits the reviewer’s strimmer and does the job, with a few calling it stronger than the line they already had. One review mentions a bright colour that shows when more line is due, though that review says green and the specification says blue. The profile is not named, so the title does not tell you whether the line is round or shaped. There is no repeated defect in the sampled UK texts, which is why this listing leads the score, but short praise is weaker than a review that describes a season of edges. It is the top pick here when you want 1.6 mm line with a large review count and you can live with the length wording, and a weaker choice if the head needs a stated star profile.
Pros
- 4.4 from 2,558 reviews, without a stack of other-diameter texts
- £5.99 for a two-pack in this capture
- Reviewers say it fits and is easy to put on
- 1.6 mm is stated in both the title and the size field
Cons
- The title says 40 m and the size field says 20 m with two items
- The profile is not stated
- One review’s green colour does not match the blue specification
- Most captured UK reviews are a single sentence
Best for: You want a widely reviewed 1.6 mm refill and you will check the pack length on the live page.
Less suitable: You need a named round or star profile, or one length figure that does not conflict.
Specifications
- Model
- SOL (1.6 mm, two-pack)
- Brand
- SOL
- Price
- ∼£6
- Customer rating
- 4.4/5(2,558)
- Diameter
- 1.6 mm
- Profile
- Not stated
- Length
- 40 m title, size 20 m
- Pack
- 2
- Weight
- 130 g
- Colour
- Blue
Common questions
Is this one 40 m spool or two shorter spools?
The title says 40 m. The size field says 20 m x 1.6 mm and the pack count is 2, so read it as two 20 m packs unless the live page says otherwise.
Which machines does the listing name?
The bullets say petrol and electric strimmers and various models. They do not name a head.
Our view
The FEPITO listing is round nylon at 1.6 mm by 30 m, priced at £3.79 on amazon.co.uk, with 4.4 from 1,260 reviews. Reviewers who have used it on grass often say it costs less than a garden-centre spool and that it sits in the head; one Ryobi cordless owner said it cuts grass well. The same review set says it breaks easily once the job moves past light grass, and one buyer reports snaps against a concrete edge and would choose a thicker grade next time. A thicker grade is only a sensible next step if your manual allows it. The title, the size, and the profile all agree, which is cleaner than several longer reels in this set. At 70 g and about 11 x 11 x 2 cm it is a small spare, not a season of bulk stock. In this comparison it is the best value pick when the head wants 1.6 mm round line for ordinary lawn, and a poor bet if every pass hits paving.
Pros
- Round 1.6 mm by 30 m, with the title and the size field in agreement
- £3.79 in the 19 October 2026 amazon.co.uk capture
- 4.4 from 1,260 reviews
- Reviewers report that it fits a spool and cuts grass
Cons
- UK reviews say it snaps, including on a concrete edge
- 30 m runs down if you trim edges often
- Several reviews say the spool has not been used yet
Best for: You have a domestic trimmer marked 1.6 mm and you want a short, cheap round refill for grass.
Less suitable: You trim against paving every week, or you want a named star profile.
Specifications
- Model
- FEPITO (Round, 30 m)
- Brand
- FEPITO
- Price
- ∼£4
- Customer rating
- 4.4/5(1,260)
- Diameter
- 1.6 mm
- Profile
- Round
- Length
- 30 m
- Pack
- 1
- Material
- Nylon
- Weight
- 70 g
Common questions
What diameter and length does the listing state?
The listing states round nylon line at 1.6 mm by 30 m, for string trimmers that call for 1.6 mm.
What do the captured reviews say about breakage?
UK reviews say it is fine for grass and cheaper than a garden centre. Several also say it breaks easily, including on a concrete edge.
Our view
Zeqeey’s orange round line is titled 1.6 mm by 100 m at £10.99, and a bullet also says 1.65 mm (0.065 inch), with the tolerance worded as no less than 1.6 mm. The star line is 4.3 from 172 reviews. Buyers praise the length against shorter shop spools, one reviewer loaded about 6 m and was satisfied on grass, and individual reviews name an Ingo and a Flymo. Others say it snaps, including on nettles, and at least one buyer found the diameter larger than advertised and had to shave it to enter the spool hole. The listing tells you to soak the line for 24 hours before use, which matches the storage advice STIHL UK gives for dried nylon and is not a cure for nettles. At 270 g and £10.99 it costs more on the shelf than ASOENTIWOX’s 100 m reel, with a larger review file and a more mixed breakage story. It fits you if you want 100 m of orange line you can see on the lawn and you will soak it and check the hole, and it is a poor match if the last spool was already too thick for the eyelet.
Pros
- 100 m of round line, with a 24-hour soak instruction on the listing
- 4.3 from 172 reviews, more evidence than the three-rating reel
- Reviewers cite ordinary grass and a visible orange colour
- It is supplied on a storage spool
Cons
- The title says 1.6 mm and a bullet says 1.65 mm
- Reviews report snaps on nettles
- At least one buyer had to shave the line to fit the spool hole
- £10.99 is the joint highest shelf price in the set
Best for: You want a long orange reel and you will soak it and test the diameter in the spool hole.
Less suitable: Your eyelet is already tight, or you are cutting nettles and expecting 1.6 mm not to snap.
Specifications
- Model
- Zeqeey (Round, 100 m)
- Brand
- Zeqeey
- Price
- ∼£11
- Customer rating
- 4.3/5(172)
- Diameter
- 1.6 mm / 1.65 mm
- Profile
- Round
- Length
- 100 m
- Pack
- 1
- Material
- Nylon
- Weight
- 270 g
- Colour
- Orange
Common questions
Does the listing tell you to soak the line?
Yes. A bullet says soaking the line in water for 24 hours before use helps it stay tough.
What breakage comments are in the reviews?
UK reviews praise the length and ordinary grass cutting. Others say it snaps, including on nettles, and one buyer had to shave it to fit the spool hole.
Our view
The TESSTSY spool is titled as heavy-duty round line, 1.6 mm by 100 m, at £4.99, and the bullets also write 0.065 inch. The amazon.co.uk line is 3.7 from 3 ratings. The only UK review captured in the file says the line breaks very easily, so there is no praise theme to set against that sentence. The listing says you do not need specialist tools to fit it, and it tells you to let the machine cool after a long session, which is ordinary trimmer care rather than a measured heat rating. A bullet that mentions lawnmowers as well as trimmers is not a fit proof. At 230 g it is a long reel on paper, about 5p a metre if the 100 m is what arrives, but three ratings cannot show whether that length survives a summer. Buy it only if you will judge the first cut yourself. Skip it if you wanted evidence that “heavy duty” means fewer snaps.
Pros
- Round 1.6 mm by 100 m is stated on the listing
- £4.99 in this capture, a low shelf price for a long reel
- The bullets say no specialist tools are needed to fit it
Cons
- 3.7 from only 3 ratings
- The only captured UK review says it snaps very easily
- Claims about all types of weeds are untested seller wording
Best for: You want a long 1.6 mm reel and you will judge the first cut yourself rather than the star line.
Less suitable: You are choosing from star ratings, or you need reviews that describe a full season.
Specifications
- Model
- TESSTSY (Round, 100 m)
- Brand
- TESSTSY
- Price
- ∼£5
- Customer rating
- 3.7/5(3)
- Diameter
- 1.6 mm
- Profile
- Round
- Length
- 100 m
- Pack
- 1
- Material
- Nylon
- Weight
- 230 g
- Colour
- Blue
Common questions
Does the listing say you need tools to fit it?
The bullets say replacement needs no specialist tools. They also say to let the machine cool after a long session.
How many reviews are behind the star rating?
The listing line is 3.7 from 3 ratings. The only captured UK review says the line breaks very easily.
How we compared
Shelf prices, star ratings and review counts are the amazon.co.uk figures captured on 19 October 2026. No lab test was run. The method file publishes a start score and point adjustments, not a split that already sums to 100. The caps below are copied as published: a 4.8 star line starts at 78, a matching review count of 2,000 or more adds 8, and one diameter, one length and a named profile add 8. Together that is 94. Repeated snap comments subtract 6, a single snap review subtracts 2, and a review stack about other variants subtracts 8. Those deductions are not extra weights, and the caps are not rescaled.
1
Star line
78%The amazon.co.uk star line sets the start. A 4.8 starts at 78, 4.6 at 74, 4.5 at 72, 4.4 at 70, 4.3 at 66 and 3.7 at 52. The weight is the highest published start, 78.
2
Review count
8%When the UK texts match the title, 2,000 or more reviews add 8, 1,000 to 1,999 add 6, and 100 to 999 add 3. Fewer than 100 ratings subtract 14 instead of a bonus. Fewer than 10 ratings subtract 12. A large count whose texts describe another diameter adds 2. The weight is the published matching bonus of 8.
3
Spec agreement
8%One stated diameter, one stated length and a named profile add 8. A 1.6 mm and 1.65 mm clash, with an agreed length and a named profile, adds 4. A title-versus-size length clash, or a missing profile, adds 2. The weight is the published full-spec bonus of 8.
Independent review
Last updated: 22 October 2026
8 sources checked
1.6 mm strimmer line buying guide
Match the diameter to the manual and the eyelet before you compare price or reel length. Round line is the usual feed. Star line is for a head that will take a shaped cord. A longer reel is more stock, not a wider cut.
What is 1.6 mm strimmer line?
1.6 mm strimmer line is nylon cord for the small heads on many domestic electric and cordless trimmers. You are matching a consumable to a machine, not choosing a new cutting width. Yourspares groups 1.5–1.6 mm with those domestic machines for edges and light weeds, and says line thicker than the manual causes feed trouble and extra motor load. Toolbuyerhub makes the same point: the size is fixed by the machine. Oversize line can also damage the eyelet.
Best for
- A domestic electric or cordless trimmer marked for this thin class
- Edges and light weeds, with a length you are willing to store
Not ideal for
- Bramble, woody stems, or work that needs a brushcutter blade
- A manual that calls for a thicker line than 1.6 mm
Mistakes to avoid
- 1
Fitting thicker line to stop snaps
Moving to 2.4 mm because 1.6 mm snapped is the usual mistake. Thicker-than-specified line feeds badly and loads the motor. Change diameter only when the manual allows it.
- 2
Winding a dry, overfilled spool
Overfilling, winding against the arrow and unequal tails all cause feed trouble. Nylon that has dried in a hot shed is brittle. A 24-hour soak is the maker note for dried line, not a cure for concrete edges.
- 3
Reading a variant review as the spec
Prefer the title and the technical details when a review describes another diameter, a square profile, or a length the title does not state. A brand list in the bullets is not a measured fit.
What to weigh up
Diameter on the manual and the eyelet
HighThe diameter is the number on the machine manual and on the eyelet, not a guess from the weeds. Yourspares puts 1.5–1.6 mm with domestic electric and cordless trimmers for edges and light weeds. The same notes say thicker-than-specified line causes feed trouble and extra motor load, and that stepping up a size to stop snaps is the wrong fix. Toolbuyerhub says the size is fixed by the machine, and that oversizing can damage the eyelet.
Profile and the length you store
HighRound nylon is the usual feed at this diameter. It suits most heads and softer grass. Star line is the more aggressive profile, sold for a cleaner cut in longer grass when the head will take a shaped cord. A five-edge star on a short donut is a different purchase from a 100 m round reel. Square and serrated line are a poor default here. The ManoMano guide places serrated line from around 3 mm. Length is storage, not cutting width. A spool typically holds a few metres.
Which option suits you?
Three typical situations, each with a recommendation from this comparison.
Weekly edges, more metres
You edge paths often, so you will use more line against concrete. A longer round reel gives you spare metres. It does not stop thin line snapping on paving, and you still match the diameter to the manual.
Named star profile
You are comparing a short star donut with a long generic reel. Choose the named star profile only if the head will feed it, and ignore reviews that describe a different diameter.
Common questions about 1.6 mm strimmer lines
What is 1.6 mm strimmer line for?
1.6 mm strimmer line is the thin nylon cord used in many domestic electric and cordless grass trimmers in the UK. You buy it to edge a lawn and to cut light weeds. Round line is the usual profile. Star line is a shaped cord for heads that will feed it. A 15 m donut and a 100 m reel are the same cutting width. They differ in how much spare line you store. It is not a brushcutter blade.
Which diameter should you buy?
Buy the diameter printed in the trimmer manual and on the eyelet. Yourspares puts 1.5–1.6 mm with domestic electric and cordless machines for edges and light weeds, and says thicker line causes feed trouble and extra motor load. Toolbuyerhub says the size is fixed by the machine. Some listings also print 1.65 mm or 0.065 inch. Check the manual before you treat those as the same as 1.6 mm.
Should you buy round line or star line?
Round line suits most heads and softer grass. Star line is sold for a cleaner cut in longer grass when the head will take a shaped cord. A five-edge star on a short donut is a different buy from a long round reel. Square and serrated line are a poor default at 1.6 mm. A trimmer-line guide places serrated shapes from around 3 mm. If the listing names no profile, you cannot tell whether the cord is round.
How long a reel should you store?
Choose the length you will store, not a different cut. A spool typically holds a few metres. One reload note uses about 3–5 m a side, or the moulded line already fitted. A 15 m or 30 m refill suits a small lawn you trim now and then. A 100 m or 200 m reel suits you if you trim often and you have checked the diameter. Weekly edging against concrete uses line faster.
What did 1.6 mm strimmer line cost on amazon.co.uk?
On 19 October 2026 the amazon.co.uk shelf prices in this set ran from about £3.79 for 30 m of round line to about £10.99. A 100 m generic round reel was about £6.98. Two 15 m branded donuts were about £8.28 and about £8.69. A three-rating listing is not the same evidence as several thousand ratings, so the lowest price per stated metre is not automatically the best value. These are captured shelf prices, not a live quote.
Can you trust a large review count?
Prefer the title and the technical details when review text describes another diameter, profile or length. Two listings in this set have that problem. Some texts on the star donut describe 2.4 mm square line, and some texts on the 200 m title describe square line, 2.4 mm, or about 380 m. Those sentences are not the specification. A large review count then adds less than a smaller count whose texts match the title.
Will a thicker line stop the snapping?
Stay with 1.6 mm unless the manual allows a thicker line. Fitting 2.4 mm to stop snaps often makes the feed worse and loads the motor. Hard edges, dried nylon, overfilling, winding against the arrow and unequal tails also snap line. A new spool is only one of those causes. The choice between this thin class and a thicker reel is set out in the 2.4 mm strimmer line comparison.
Which safety rules apply to the trimmer, not the spool?
There is no British Standard number on these listings. The line is not a measured quieter product and it does not prevent hand-arm vibration. For paid work, UK training points at the Health and Safety at Work etc. Act 1974, PUWER 1998, and the noise and vibration regulations. HSE’s INDG480 suggests 7 m/s² as an initial strimmer vibration figure for employers. That figure is the machine, not the spool. Wear eye protection. Stop if long grass may hide a nest.
Our verdict
The top pick is the SOL two-pack, score 80, at about £5.99, with 4.4 from 2,558 reviews. The texts are not a stack of other diameters. The title says 40 m and the size field says 20 m with two items, so the spec bonus stays at 2, and the profile is not named. Best value is the FEPITO round line, 1.6 mm by 30 m, at about £3.79, score 78, with 4.4 from 1,260 reviews. It is the lowest shelf price among listings with at least 1,000 reviews, one agreed 1.6 mm diameter and a named profile. Repeated UK snap comments, including a concrete edge, take 6 points off. TESSTSY is cheaper per stated metre and is left out of that badge because it has three ratings.
Best value
View offer
FEPITO (Round, 30 m)
Best value at about £3.79: lowest shelf price among large, agreed 1.6 mm listings with a named profile, score 78, with snap comments on hard edges.
Editorial
Editor
DIY & toolsLawn and garden equipmentStrimmer line
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: 22 October 2026
8 sources checked
Guides to 1.6 mm strimmer lines
Guides on what to look for, how to use a product, and common mistakes.
1.6 mm strimmer line buying guideConfirm diameter, profile and reel length before you buy.Best 1.6 mm strimmer lineMatch a listing to light edging, a named star profile, or a long reel.How to load 1.6 mm strimmer lineRefill a standard spool or an easy-load head.1.6 mm vs 2.4 mm strimmer lineStay at 1.6 mm, or move up only if the manual allows it.1.6 mm strimmer line keeps snappingSeparate brittle line, hard edges, the wrong diameter and bad winding.
Related comparisons
Sources
Public UK sources named in the research digest. Amazon prices, stars and review counts are the eight listings captured on 19 October 2026.
- Yourspares — how to choose strimmer line (retrieved 19.10.2026)
- Yourspares — strimmer line sizes explained (retrieved 19.10.2026)
- Yourspares — strimmer line keeps breaking (retrieved 19.10.2026)
- ManoMano UK — trimmer line buying guide (retrieved 19.10.2026)
- STIHL UK — grass trimmer PPE (retrieved 19.10.2026)
- STIHL UK — replacing trimmer line (retrieved 19.10.2026)
- Husqvarna UK — how to reload trimmer line (retrieved 19.10.2026)
- HSE — INDG480 hand-arm vibration in horticulture (retrieved 19.10.2026)
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