The best Chalk lines, compared.
Top pick: Milwaukee chalk reel, 100 ft – Highest star rating in this set, 4.6 from 880 amazon.co.uk reviews, on a 100 ft bold reel with a 6:1 rewind at about £17.47. Best value: OX Trade chalk reel, 30 m – 30 m, 6:1 and 118 ml of blue chalk in the box at about £12.00, with 4.4 from 340 reviews. Updated October 2026.
A chalk line is a hand reel that coats a string in powdered chalk so you can snap a straight mark on timber, board, concrete or a floor. In the UK you buy one when a pencil or a short straightedge cannot span a room, a deck or a long floor in one pull. You judge a suitable reel by the cord length, whether powder is in the box, how bold or fine the line is, and whether that colour will wipe off or stain. A gear ratio is rewind speed, not a quality grade. One to one means the spool turns once per crank turn. A 15 m reel covers a room. A 30 m reel is for one pull across a deck or a long floor. Blue chalk is the usual temporary mark. Trade notes treat red as harder to remove, and white as the interior option. No British Standard for the reel was found. Length, powder and gear are set out in the [chalk line buying guide](/hub/measuring-and-marking-tools/chalk-line/sub/chalk-line-buying-guide).
A chalk line is a hand reel that coats a string in powdered chalk so you can snap a straight mark on timber, board, concrete or a floor.
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Personal buying guide
Question 1 of 2
Do you need powder in the box today?
The Milwaukee 48-22-3986 listing is about £17.47. The item type name is a 100 ft bold line chalk reel, the bullets say a 6:1 rewind, and the weight is 250 g. amazon.co.uk shows 4.6 from 880 reviews, the highest star rating in this set. The material field says red chalk rather than a case material, and one of the first 50 reviews expected metal and found plastic. Those reviews praise the visible line and the rewind, and they warn against emptying a whole bottle in at once. A chalk bottle is not established by the specification fields. It is the top pick on review depth, not because powder is confirmed in the box.
Pros
Cons
Best for: You want the 100 ft bold reel with the highest star rating and the largest review count in this set.
Less suitable: You need chalk in the box today, or a metal case. The material field does not say metal.
Specifications
Common questions
What length and gear ratio does Milwaukee print?
The item type name says a 100 ft bold line chalk reel. The bullets say a 6:1 retraction ratio and that it is manufactured in Taiwan. 100 ft is about 30.5 m.
Is a chalk bottle listed in the box?
The included-components field says garage storage hardware, which does not match a chalk reel. The ink colour is red. The listing does not give a bottle size.
What filling mistake do reviews repeat?
In the first 50 of 880 reviews, several say a full bottle in one go makes the rewind stiff. Others praise the lock and the visible line.
The PRESCH listing is about £21.99 for a 30 m reel with 150 g of red chalk. The title says a 6:1 gearbox, and the special-features field also prints 6:2. The listing does not say which figure was measured. Weight is 380 g. The material is plastic and thermoplastic rubber, and the water-resistance field says water resistant. amazon.co.uk shows 4.6 from 209 reviews. Many of the first 50 texts are not in English. The complaints that repeat are a stiff crank after filling and a cap that does not stay shut. One English review says not to get the chalk damp. Red is the harder-to-remove colour on UK trade notes, so this is the wrong bottle for plaster you will paint.
Pros
Cons
Best for: You want a 30 m reel that includes a large bottle of red chalk and you accept red as a hard-to-remove mark.
Less suitable: You are marking plaster you will paint. The chalk in this box is red.
Specifications
Common questions
What chalk is in the PRESCH box?
The title and the included-components field say 150 g of red chalk with the 30 m reel.
Which gear ratio is printed?
The title says 6:1. The special-features field also prints 6:2. The listing does not say which figure was measured.
What do reviews say after filling?
Of the first 50 of 209 reviews, many praise the rewind. Others say the crank goes stiff once chalk is in, or that the cap opens in the tool bag. One English review says not to get the chalk damp.
The OX Trade listing OX-T630602 is about £12.00, 30 m, 6:1, with 118 ml of blue chalk and a 1.75 mm cotton-nylon line. The case is ABS with a rubber overmould and the weight is 360 g. amazon.co.uk shows 4.4 from 340 reviews. The first 50 reviews praise the rewind and the build. They also say the blue chalk can look pale and that a pull past about 20 m may need another pass through the chamber. It is best value on this page because powder is in the box, the rewind is geared, and the price sits in the middle of this shelf.
Pros
Cons
Best for: You want a 30 m reel with blue chalk in the box and a geared rewind at about £12.00.
Less suitable: You need a mark that stays in the rain, or a fine line for finish work. This pack is blue and 1.75 mm.
Specifications
Common questions
Does this OX Trade reel come with chalk?
Yes. The bullets say the value pack includes 118 ml of blue marking chalk with a high-flow nozzle.
What line and gear ratio are printed?
The title says a standard bold line and a 6:1 gear ratio. The line size field says 1.75 mm, and the bullets say cotton and nylon.
What do the reviews repeat about the chalk?
Across the first 50 of 340 reviews, the rewind and the case are praised. Several say the blue chalk is pale or coats a long pull poorly unless you rewind and pay the line out again.
The OX Pro listing OX-P630702 is about £11.34 for a 50 ft reel. The bullets say 15.25 m, a 3:1 gear ratio and a 0.5 mm Kevlar line. The style line includes a 4 oz blue refill. Weight is 290 g and the material field says plastic. amazon.co.uk shows 4.4 from 95 reviews. The 28 texts in the sample split between a crisp thin line and a cord that is hard to see or to grab. It is the short, fine reel in this set, not a 30 m site line.
Pros
Cons
Best for: You want a short, fine line for panelling or a cut mark, and chalk is already in the pack.
Less suitable: You snap long lines on block or concrete and need a bold mark.
Specifications
Common questions
How long is the OX Pro line?
The title says 50 ft. The bullets say 15.25 m. The gear ratio printed is 3:1, not 6:1.
Does it include chalk?
The bullets say the value pack includes chalk powder. The style field says a 50 ft Kevlar reel plus a 4 oz refill. The ink colour is blue.
What do reviews say about the thin line?
Of 28 reviews in the sample, some praise a crisp thin mark. Others say the cord is hard to grab and the mark is faint on block or concrete.
The Tolsen 42012 listing is about £10.77 for a 30 m reel with blue powder and a spirit level in the included components. The case is ABS and the weight is 280 g. The bullets say the rewind is up to three times faster than a basic reel and tell you not to fill to the brim. They do not print a ratio such as 3:1 or 6:1. amazon.co.uk shows 4.3 from 969 reviews. The first 50 include both successful stair and panelling jobs and reels that jammed or dumped chalk. The line-size field prints 0.5 mm, 0.7 mm or 0.9 mm, so the diameter is not one figure.
Pros
Cons
Best for: You want a 30 m reel with blue powder and a claimed vial at about £10.77.
Less suitable: You need a stated 6:1 gearbox or a case reviewers do not describe as leaking.
Specifications
Common questions
Does the Tolsen kit include chalk?
The title says blue powder. Included components are a powder bottle, a reel and a spirit level.
What rewind does the listing claim?
The bullets say the mechanism winds up to three times faster than a basic reel. They do not print a gear ratio such as 3:1 or 6:1.
What goes wrong in the reviews?
In the first 50 of 969 reviews, praise is a clear line on stairs and panelling. Complaints are a snapped or jammed string, a door that dumps chalk, and a bottle that will not dispense.
The HAUTMEC HT0384-CL listing is about £17.99 for a 30 m reel with a 6:1 gear ratio and an ABS and TPR case. Weight is 230 g. The bullets claim a cotton and polyester cord rated to 20 kg of pull, and they describe a wide fill port without naming a bottle. amazon.co.uk shows 4.2 from 16 reviews, and five texts are in the sample. Two praise the rewind and the build. One says the cord will not hold chalk. One roofer says it frayed and jammed with a chalk-and-water mix. At this price the Milwaukee reel is about £17.47 with 880 reviews.
Pros
Cons
Best for: You specifically want the handle releaser and you can judge a 16-review sample.
Less suitable: You want a heavily reviewed 30 m reel at this price.
Specifications
Common questions
What does the HAUTMEC Pro title specify?
A 30 m reel, a 6:1 gear ratio, an ABS and TPR case, and a handle releaser. The model is HT0384-CL. Weight is 230 g.
Is chalk listed?
The bullets describe a wide fill port and do not name a bottle. One of five reviews says no chalk was supplied.
What did the five reviews say?
Two praise the rewind and the build. One says the cord will not hold chalk. One roofer says it frayed and jammed with a chalk-and-water mix.
The Rolson 52537 listing is about £4.08 for a 15 m plastic reel. The bullets include blue chalk, printed as 4 oz/13 g, and a line level. Four ounces is about 113 g, so those two figures cannot both be the bottle. Weight is 254 g. amazon.co.uk shows 4.0 from 706 reviews. The item type name says wheel for a hand truck, which is not this product. The first 50 reviews split between a usable set for one home job and a string that snapped or a case that leaks. No gear ratio is printed, so you cannot compare the rewind with a 6:1 reel.
Pros
Cons
Best for: You need a cheap 15 m set with some chalk for a single home layout.
Less suitable: You want a 30 m site reel or a rewind ratio you can compare.
Specifications
Common questions
What is in the Rolson set?
The title says a 3-piece set. The bullets say a 15 m plastic reel, blue chalk printed as 4 oz/13 g, and a line level.
Is 4 oz the same as 13 g on this listing?
No. The bullets print both figures. Four ounces is about 113 g. The listing does not resolve which figure is the bottle.
What do the reviews say it is for?
Of the first 50 of 706 reviews, many say it is enough for one home job. Others report a snapped string, leaks, or a line level that does not agree with itself.
The OX Contractor OX-T630502 listing is about £8.35. The title says a 30 m reel, a 1:1 gear ratio, a 1.75 mm line, and no powder. A 1:1 reel turns the spool once per crank turn. The material field says ABS and the weight is 163 g. The title also uses the word aluminium. amazon.co.uk shows 4.0 from 463 reviews. The first 50 are mostly about the missing chalk, even though the title states it, with a smaller group praising the hook and the winding once powder is added.
Pros
Cons
Best for: You already have chalk and you want a cheap 30 m bold reel.
Less suitable: You need to mark on the day it arrives, or you want a 6:1 rewind.
Specifications
Common questions
Does this OX Contractor reel include chalk?
No. The title says powder is not included. Included components are one chalk reel. The ink-colour field says not included.
What gear ratio is printed?
1:1. The title also says that ratio is for a faster rewind. A 1:1 reel turns the spool once per crank turn.
Why do so many reviews mention chalk?
In the first 50 of 463 reviews, most early texts say no chalk was included and that this was not obvious enough, even though the title states it.
The HAUTMEC HT0108-CL listing is about £11.99. The title says 30 m and 6:1. The bullets say an ABS housing and the material field says alloy steel, so the case material is not agreed. Weight is 191 g. The bullets do not name a powder bottle. amazon.co.uk shows 3.9 from 189 reviews, with 22 texts in the sample. Those texts include a rewind that saves time and several cords that snapped or arrived with no chalk. Buy it only if you already own powder.
Pros
Cons
Best for: You already own chalk and you want a cheap 6:1 reel while accepting a mixed review sample.
Less suitable: You need powder today, or a case material the listing agrees with itself about.
Specifications
Common questions
Is the case ABS or alloy steel?
The bullets say an ABS housing. The material field says alloy steel. Weight is 191 g. The listing does not resolve the clash.
Is chalk included?
The bullets do not name chalk. Several of the 22 reviews in the sample say none was in the box.
What failed in the reviews?
Reviews include a cord that jammed or snapped, a fill door that stuck, and a tiler who says it snapped twice. Others say the 6:1 rewind saves time.
The Amtech G3750B listing is about £7.12. The title says a 2-piece 30 m kit with powder and an aluminium body. Weight is 180 g and the manufacturer field is DK Tools. The ink colour is white. The material field also says metal and plastic, so the aluminium claim is the title, not a single agreed field. amazon.co.uk shows 3.9 from 132 reviews. The 20 texts in the sample include both a tool that survived drops and strings that snapped or would not stay on the reel. One review says a picture promised red chalk. No gear ratio is printed.
Pros
Cons
Best for: You want a low-priced 30 m kit and you only need it for one light job.
Less suitable: You need a geared rewind or a cord reviewers describe as reliable.
Specifications
Common questions
What does the Amtech title promise?
A 2-piece kit, a 30 m self-chalking reel, high-visibility powder and a lightweight aluminium body. The model is G3750B.
What colour is the chalk field?
The ink-colour field says white. One review says a picture promised red chalk and that was why they bought it.
What do the 20 reviews in the sample repeat?
Some say it did one job. Others say the string came off, snapped, was not 100 ft, or leaked at the joints.
The HAUTMEC HT0356 listing is about £8.99. The title says a 30 m reel with a 6:1 gear ratio and an aluminium box. The bullets say an aluminium alloy shell and the weight is 300 g. The manufacturer field is SUOBO TOOLS. The bullets do not name a powder bottle. amazon.co.uk shows 3.7 from 10 reviews. Six texts are in the sample. They include a solid metal case and a button release, and also a snapped line and a claim that the cord is only 8 m. Check the length when it arrives. The review count is too small to treat the star line as settled.
Pros
Cons
Best for: You want to try an aluminium-bodied 6:1 reel at about £8.99 and you can check the length when it arrives.
Less suitable: You need a large review sample or chalk in the box.
Specifications
Common questions
What is the case made of on this listing?
The bullets say an aluminium alloy shell. The material field says aluminium. Weight is 300 g.
Does the listing include chalk?
The bullets do not name a powder bottle. Chalk inclusion appears only as a question heading, not as an answer.
What is the review sample?
The listing shows 3.7 from 10 reviews, and six texts are in the sample. One says the line is 8 m. One says it snapped and had to be dismantled.
The top pick and best value follow the stored awards on these eleven amazon.co.uk listings: the Milwaukee 100 ft reel, and the OX Trade pack with blue chalk. Card scores read the star rating and the review count. They are not a lab test, and a higher gear ratio is not a higher grade. The five weights below follow the buying order and sum to 100.
Powder in the box
25%Whether the listing includes a bottle, and whether reviews say one arrived. A title that says powder is not included is a different buy from a value pack. A title that promises chalk and arrives empty is a description problem.
Line length
20%A 15 m reel, or 15.25 m where the bullets print 50 ft, covers a room. A 30 m reel, including a title that prints 100 ft, is for one pull across a deck or a long floor.
Line type
20%A bold cotton-nylon cord around 1.75 mm leaves a wide mark. A 0.5 mm line is for a narrow mark. Amazon line-size buckets such as 2 mm and above are listing fields, not a diameter measured here.
Gear ratio and lock
20%6:1, 3:1 and 1:1 are rewind speeds. A hub lock lets you pull line without spinning the crank. Some listings only say the rewind is faster than a basic reel and print no ratio.
Case and reviews after filling
15%ABS or plastic covers most of this set. Aluminium is a listing claim on some reels. Jam, snap and leak comments sit beside the star rating, especially once the chamber is filled.
Check the powder, the length and the line before you compare the star rating. These eleven amazon.co.uk listings are self-chalking reels, from about £4.08 to about £21.99. The top pick is the Milwaukee 100 ft reel at about £17.47, on 4.6 from 880 reviews. Best value is the OX Trade pack at about £12.00, because 118 ml of blue chalk is in the box with a 6:1 rewind. A higher gear ratio is not a higher grade. A builders' string line has no chalk chamber and is not this product.
A chalk line is a hand reel that holds powdered chalk and a cord. You hook the end, pull the cord tight and snap it so the powder leaves a straight mark on timber, board, concrete or a floor. A builders' string line has no chalk chamber and is not this product. In the UK the usual buy is a 15 m set or a 30 m reel, which some titles also print as 100 ft, with or without a bottle of powder. Stored prices on this shelf run from about £4.08 to about £21.99. Quality, for a shopper, is practical.
Several listings do not name a bottle, and the OX Contractor title says powder is not included. Reviews on two HAUTMEC reels say no chalk arrived. If you need to mark today, buy a pack that names the powder. A missing bottle is a description problem when the title promised a value pack.
A full bottle in one go is the filling mistake reviews repeat, especially on the Milwaukee reel: the rewind goes stiff. Tolsen tells you not to fill to the brim. A single snap on a dry cord leaves a faint mark. Rewind the line through the chalk before you pull it out.
Wonkee Donkee calls red permanent. Stanley's UK page points red at external masonry and white at interior work. IRWIN says permanent red or black should stay off finish material. The PRESCH box is 150 g of red. Do not treat that bottle as a mark that washes off plaster.
Powder is the first check, because a reel without chalk cannot mark on the day it arrives. The OX Trade pack includes 118 ml of blue. The OX Pro style line includes a blue refill. PRESCH includes 150 g of red. Tolsen and Rolson list powder. Rolson prints 4 oz and 13 g, and those figures cannot both be the bottle. The OX Contractor title says powder is not included. Two HAUTMEC listings dsaved reviews that say no chalk arrived. Length comes next. Rolson prints 15 m.
Gear ratio is how fast the crank rewinds the spool. It is not a test score. 6:1 is printed on OX Trade, Milwaukee, PRESCH and the HAUTMEC reels whose titles state that ratio. 3:1 is the OX Pro reel. 1:1 is the OX Contractor, which means one spool turn per crank turn. Tolsen says up to three times faster than a basic reel and does not print a ratio. PRESCH prints 6:1 in the title and 6:2 in special features. A hub lock lets you pull line without spinning the crank.
Three typical situations, each with a recommendation from this comparison.
You want blue chalk in the box and a rewind you can compare. The OX Trade reel is about £12.00, 30 m, 6:1, with 118 ml of blue chalk and a 1.75 mm line. amazon.co.uk shows 4.4 from 340 reviews. Reviews praise the rewind and also call the blue chalk pale on a long pull.
You snap lines often and you want the largest strong review count. The Milwaukee reel is about £17.47. The title says a 100 ft bold line and the bullets say 6:1. It is 4.6 from 880 reviews. A chalk bottle is not established by the specification fields, and overfilling makes the rewind stiff.
You want a narrow line for panelling or a cut, not a bold mark on block. The OX Pro reel is about £11.34, 15.25 m, with a 0.5 mm Kevlar line, a 3:1 rewind and a blue refill. It is 4.4 from 95 reviews. Reviews split between a crisp thin mark and a cord that is hard to grab.
The top pick is the Milwaukee 100 ft bold reel at about £17.47. The bullets say a 6:1 rewind, the weight is 250 g, and amazon.co.uk shows 4.6 from 880 reviews, the highest star rating in this set. A chalk bottle is not established by the specification fields, and reviews warn that emptying a whole bottle at once stiffens the rewind. Best value is the OX Trade 30 m pack at about £12.00, with 118 ml of blue chalk, a 6:1 rewind and a 1.75 mm line, rated 4.4 from 340 reviews. Reviews call that blue chalk pale on a long pull. A higher gear ratio is not a higher grade, and red chalk is the harder-to-remove colour if you still have to paint.
Milwaukee chalk reel, 100 ft
Highest star rating in this set, 4.6 from 880 amazon.co.uk reviews, on a 100 ft bold reel with a 6:1 rewind at about £17.47.
OX Trade chalk reel, 30 m
30 m, 6:1 and 118 ml of blue chalk in the box at about £12.00, with 4.4 from 340 reviews.
Editorial
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.
Guides on what to look for, how to use a product, and common mistakes.
Public UK sources listed below, then the stored amazon.co.uk listings for these eleven reels. Prices are the stored shelf prices, not a live ticker.
This page contains affiliate links to amazon.co.uk. If you buy through them, we may earn a commission at no extra cost to you. Prices, stars and review counts are the amazon.co.uk figures stored for this set. This is not a laboratory test.
