A spare hand on a light repair
You are holding a wardrobe, a skirting, or a small glue-up and you want one hand free. The Irwin Quick-Grip pair states a 150–300 mm jaw, a 62 mm throat and up to 63 kg, at about £14.90. It does not state a spreader.
Clamps comparison 2026
The best clamps, compared.
Top pick: Irwin Quick-Grip 300 mm pair – Stated 150–300 mm jaw, 62 mm throat and up to 63 kg, at about £14.90, with 4.7 from 5,967 reviews for light-duty one-handed holding. Best value: WORKPRO 150 mm pair – Two 150 mm bars at about £12.99, with a 60 mm throat and a stated 285 mm spreader, and the force-line conflict kept in the score. Updated October 2026.
A clamp is a hand tool that holds work by a spring, a one-handed bar, or a small screw. A wardrobe repair, a light glue-up, and clipping a backdrop or a tarp are not the same purchase. An inch on the listing can mean the jaw, the body, or the tool length. A higher price here is more pieces, not a sash clamp. The useful checks are a stated jaw, a stated throat where one is printed, a holding figure you can tie to that size, and pads that stay on. The order of those checks is in the [clamps buying guide](/hub/tools/clamps/sub/clamps-buying-guide). A clamp holds work while you mark, glue, or clip it. A trigger bar is what you want when the other hand is positioning the work. The only G-clamp here opens 10–57 mm with a 28 mm throat. No sash clamps and no parallel clamps are among the eleven listings. A camera-mount product was left out because it is a different tool.
A clamp is a hand tool that holds work by a spring, a one-handed bar, or a small screw. A wardrobe repair, a light glue-up, and clipping a backdrop or a tarp are not the same purchase.
38 products checked · 61 hrs invested · +17,300 readers
11 of 11: Best clamps compared
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1-2 of 11Best overall
Best value
9.4/10
9.2/10
9.2/10
9.2/10
9.0/10
9.0/10
8.8/10
8.8/10
8.6/10
8.6/10
8.0/10
∼ £15
∼ £13
∼ £17
∼ £30
∼ £20
∼ £25
∼ £17
∼ £16
∼ £9
∼ £7
∼ £14
4.7(5,967)
4.6(8,917)
4.6(8,917)
4.6(722)
4.5(9,814)
4.5(3,256)
4.4(1,014)
4.4(65)
4.3(848)
4.3(10)
4.0(157)
Personal buying guide
Which clamp fits?
Question 1 of 2
How wide is the hold?
The best clamps in detail
Our view
The Irwin pair gives you a stated 150–300 mm jaw range, a 62 mm throat and up to 63 kg of force for light-duty holding. Its one-handed trigger is practical when your other hand is positioning the work. The 4.7 rating from 5,967 amazon.co.uk reviews is the strongest star result in this set, although it is not a laboratory score. At about £14.90 for two, it also compares well with the other 300 mm option. The listing does not state that the jaw reverses for spreading, so do not buy it for that feature. The separate 50 g weight field is not credible for two 300 mm clamps and should not guide your choice.
Pros
- 300 mm light-duty capacity with a 62 mm throat
- Up to 63 kg stated force
- Pair costs about £14.90
- 4.7 from 5,967 amazon.co.uk reviews
Cons
- No spreader mode is stated
- Light-duty rather than a clamp for heavy structural work
- The listed 50 g weight is not credible for the pair
Best for: Light-duty repairs and glue-ups needing a one-handed bar around 300 mm.
Less suitable: Heavy work, fabric backdrops, or anyone who needs a stated spreader mode.
Specifications
- Model
- Irwin Quick-Grip 300 mm pair
- Brand
- IRWIN
- Price
- ∼£15
- Customer rating
- 4.7/5(5,967)
- Type
- One-handed bar
- One-handed
- Yes
- Stated force
- 63 kg
- Jaw opening
- 150–300 mm
- Throat
- 62 mm
- Pads
- Non-marring
- Pieces
- 2
Common questions
What force does the listing state?
The title and bullets say up to 63 kg (140 lb) of sustained force, and they call the clamp light-duty. A separate tensile field of 1170 psi is not that figure.
What jaw and throat are printed?
The bullets say a jaw capacity from 150 mm to 300 mm and a throat depth of 62 mm.
Does this twin pack say it becomes a spreader?
This listing does not state a reverse-jaw spreader. Treat spreader mode as not specified.
Our view
The 150 mm WORKPRO pair gives you two short one-handed bars, a 60 mm throat and a stated 285 mm spreader mode for about £12.99. That combination makes it the best value in this set when a short pair with a printed force is the requirement. The bullet states 68 kg and 150 lb, while a highlight also prints 50 lb, so the force specification is internally inconsistent. Its 4.6 rating from 8,917 reviews is also shared with the 305 mm variant rather than being a separate sample. Removable soft pads are useful on finished work, provided they remain seated. Buy it for compact light-duty holding, not for work beyond the 150 mm jaw.
Pros
- Two 150 mm bars for about £12.99
- Converts to a stated 285 mm spreader
- 60 mm throat
- Removable soft pads
Cons
- The listing conflicts between 68 kg, 150 lb and 50 lb
- Written reviews are shared with the 305 mm pair
- Only suited to short, light-duty work
Best for: Short one-handed holds where price, a printed force and spreader mode matter.
Less suitable: Work wider than 150 mm, or buyers who need an unambiguous force specification.
Specifications
- Model
- WORKPRO 150 mm pair
- Brand
- WORKPRO
- Price
- ∼£13
- Customer rating
- 4.6/5(8,917)
- Type
- One-handed bar
- One-handed
- Yes
- Spreader
- Yes
- Stated force
- 68 kg
- Jaw opening
- 150 mm
- Throat
- 60 mm
- Pads
- Soft
- Pieces
- 2
Common questions
Which force figure should you use?
The bullet says up to 68 kg (150 lb). The highlight also says 68 kg (50 lb). Those pound figures do not match. Keep both, and do not average them.
What is the opening?
150 mm clamping, 60 mm throat, and 285 mm as a spreader, all from the bullets.
Are the written reviews only about this pair?
The saved review text is the same as the 305 mm file and talks about a 305 mm set. Capacity for this ASIN stays on its own bullets.
Our view
This WORKPRO pair provides a 305 mm jaw, a 60 mm throat and a stated 68 kg of clamping force. Moving the fixed jaw also gives a stated 440 mm spread, which makes it more versatile than rows with no spreader specification. At about £16.99 it costs more than the Irwin pair, for two long light-duty bars. Its 4.6 rating from 8,917 reviews looks reassuring at first glance. However, the saved review text and total are identical to the 150 mm WORKPRO listing, so they are not independent evidence for this size. Choose it for the capacity and stated features, not because it appears to have a separate large review sample.
Pros
- 305 mm clamping capacity
- Converts to a stated 440 mm spreader
- 68 kg stated force
- Soft pads and a 60 mm throat
Cons
- Review text is shared with the 150 mm listing
- Costs more than the Irwin pair
- The review total cannot be treated as a separate sample for this size
Best for: Work needing a 305 mm one-handed clamp that can also spread to 440 mm.
Less suitable: Buyers who want product-specific reviews for the 305 mm size, or a heavier-duty clamp.
Specifications
- Model
- WORKPRO 305 mm pair
- Brand
- WORKPRO
- Price
- ∼£17
- Customer rating
- 4.6/5(8,917)
- Type
- One-handed bar
- One-handed
- Yes
- Spreader
- Yes
- Stated force
- 68 kg
- Jaw opening
- 305 mm
- Throat
- 60 mm
- Pads
- Soft
- Pieces
- 2
Common questions
How wide does this pair open?
The bullet says 305 mm for clamping and 440 mm when used as a spreader. Throat depth is 60 mm.
Why is the review count the same as the 150 mm pair?
The stored review text for B0875RW1Y6 and B0875TD935 is the same, including the 4.6 from 8,917. Do not read that as two separate studies.
What force is stated?
The bullet says 68 kg. No second, conflicting pound figure is printed on this listing.
Our view
The EMART pack is built around backdrop work, with twenty 4.5 inch nylon spring clamps and a stated 2 inch opening. Its 10 lb force claim is useful for understanding the intended light hold but should not be compared as though it were a test against a 63 kg bar clamp. The 4.6 rating from 722 reviews is a solid sample for this specialist use. At about £29.99, however, it is the dearest row in the set. UK reviews include a clip breaking on first use and clips blowing off a swing cover. Choose it when you need many fabric or paper clips, not as the primary pressure source for a wood joint.
Pros
- Twenty clamps in one pack
- 2 inch opening stated clearly
- 10 lb force claim
- Designed around fabric and backdrop use
Cons
- Highest price in this comparison
- Not the primary clamp for a wood glue-up
- Reviews include clips breaking or blowing off covers
Best for: Photography backdrops, fabric and other numerous light temporary holds.
Less suitable: Panel glue-ups, windy outdoor covers, or buyers needing a heavy-duty clamp.
Specifications
- Model
- EMART 20 backdrop springs
- Brand
- EMART
- Price
- ∼£30
- Customer rating
- 4.6/5(722)
- Type
- Spring
- One-handed
- Yes
- Stated force
- 10 lb
- Jaw opening
- 50 mm
- Pads
- Plastic
- Pieces
- 20
Common questions
What are they sold for?
The title and highlight name photography backdrops, fabric, muslin, and paper. Carpentry is also named in a bullet. The force claim is 10 pounds.
How far do they open?
The bullet says 2 inches (5 cm) between the inside edges. Length is 4.5 inches.
What do UK reviews say went wrong?
One UK review said clips blew off a swing cover. Another said a clip broke on first use and did not feel heavy duty.
Our view
The Amazon Basics set gives you two 10.16 cm and four 15.24 cm clamps operated by a one-handed trigger. The bullets state 9.98 kg for the smaller size and 45.36 kg for the larger, which is more informative than rows with no force figure. At about £19.79 for six, it offers plenty of contact points for small assemblies. Its 4.5 rating from 9,814 reviews is based on the largest review count in this comparison. The title calls the set spring clamps, but the mechanism described in the bullets is a hardened-steel bar and trigger. Spreader use is not stated, and one review disputes the non-marring description by calling the pads hard plastic.
Pros
- Six trigger clamps in two sizes
- Separate stated force figures for the two sizes
- Largest review count in the comparison
- One-handed mechanism described in the bullets
Cons
- The title says spring while the bullets describe trigger bars
- Spreader mode is not stated in the bullets
- One review describes the pads as hard plastic
Best for: Several small one-handed holds where two short sizes are more useful than one long pair.
Less suitable: Anyone specifically seeking spring clamps, soft confirmed pads, or stated spreader use.
Specifications
- Model
- Amazon Basics 6-piece trigger set
- Brand
- Amazon Basics
- Price
- ∼£20
- Customer rating
- 4.5/5(9,814)
- Type
- One-handed bar
- One-handed
- Yes
- Stated force
- 9.98 kg, 45.36 kg
- Jaw opening
- 102 mm, 152 mm
- Pads
- Non-marring
- Pieces
- 6
Common questions
Are these spring clamps?
The title says a steel spring clamp set. The bullets say nylon bodies, hardened-steel bars, and a one-handed trigger. Use the bullets for the mechanism.
What force is stated for each size?
9.98 kg for the 10.16 cm clamps and 45.36 kg for the 15.24 cm clamps.
Do the bullets mention a spreader?
No. One UK review says the ends reverse. That is a review, not a bullet, so the comparison cell stays unspecified.
Our view
This four-piece WORKPRO set covers short jobs with two 120 mm bars and two 150 mm bars. Each size is described as reversible, with stated spreader capacities of 200 mm and 270 mm. The listing gives force figures of 23 kg and 68 kg but does not clearly assign one to each length. At about £24.99, it costs more than buying one pair but gives you four contact points for small assemblies. No throat depth is printed, and UK reviews mention jaws that do not reach far enough for some work. It suits repeated small holds better than a deep or wide glue-up.
Pros
- Four bars in two useful short lengths
- Both sizes convert to spreaders
- Two stated force figures
- Removable pads
Cons
- The listing does not assign each force figure to a size
- No throat depth is printed
- Reviews mention that the jaws may not reach far enough
Best for: A small workshop needing four short one-handed clamps in two capacities.
Less suitable: Deep work, long glue-ups, or buyers who need a clear force figure for each size.
Specifications
- Model
- WORKPRO 120 mm and 150 mm set
- Brand
- WORKPRO
- Price
- ∼£25
- Customer rating
- 4.5/5(3,256)
- Type
- One-handed bar
- One-handed
- Yes
- Spreader
- Yes
- Stated force
- 23 kg, 68 kg
- Jaw opening
- 120 mm, 150 mm
- Pads
- Removable
- Pieces
- 4
Common questions
What is in the box?
Two 120 mm bar clamps and two 150 mm bar clamps. Spread is stated as 200 mm and 270 mm for those sizes.
Can they push as well as clamp?
Yes. The bullets say a quick-change button lets you reverse the jaw and use the tool as a spreader.
Is a throat depth given?
No throat depth is printed for this set. UK reviews mention jaws that do not reach far enough.
Our view
This mixed WORKPRO set combines four 115 mm one-handed bars with two 165 mm and two 115 mm spring clamps. The bars carry a stated force of up to 23 kg, while the springs have no printed force figure. For about £17.33, eight pieces give you more ways to position a small craft project than a single pair. The 4.4 rating comes from 1,014 reviews, a useful but smaller sample than the main WORKPRO pairs. Reviews repeatedly warn that tips can come off, and one buyer reported a clamp that jammed and would not release. It is a flexible light-duty kit, not a substitute for longer or heavier primary clamps.
Pros
- Four bar clamps and four spring clamps
- Up to 23 kg stated on the bars
- Two spring-clamp sizes
- Low price for eight pieces, about £17.33
Cons
- No force is stated for the springs
- Reviews report loose tips
- One review says a clamp jammed and would not release
Best for: Light craft work needing both trigger bars and quick temporary spring holds.
Less suitable: Heavy glue-ups, or buyers who need a force specification for every clamp.
Specifications
- Model
- WORKPRO 8-piece bar and spring set
- Brand
- WORKPRO
- Price
- ∼£17
- Customer rating
- 4.4/5(1,014)
- Type
- Bar and spring
- One-handed
- Yes
- Stated force
- 23 kg
- Jaw opening
- 115 mm, 165 mm
- Pads
- Red pads
- Pieces
- 8
Common questions
What is in the set?
Four 115 mm bar clamps, two 165 mm spring clamps, and two 115 mm spring clamps.
How much force is stated?
Up to 23 kg for the bar clamps. No kilogram is given for the springs.
Do UK reviews mention a fault?
Yes. Tips come off, the tools are smaller than some buyers expected, and one review says a clamp jammed and would not release.
Our view
The LOLYSIC pack supplies sixteen 6 inch spring clamps for about £16.14, making quantity its main advantage. Reviews describe a strong spring, so these are not necessarily gentle clips despite the plastic bodies. The listing prints 158 mm by 118 mm but does not separate body size from the usable jaw opening. It also gives no kilogram or pound force, which rules out a direct pressure comparison with the bar clamps. Several UK reviewers say the orange movable tips fall off or break, and the strong action can be hard on the hand. One outdoor user also reported rust despite the rust-proof wording, so dry indoor storage is the safer fit.
Pros
- Sixteen clamps for about £16.14
- Strong spring action according to reviews
- Movable pads
- Useful quantity for many light holds
Cons
- No separate jaw opening or force is stated
- Orange tips repeatedly come off or break in reviews
- Strong springs can be hard on the hand
- One outdoor review reports rust
Best for: Many temporary light holds where quantity matters more than a measured jaw or force.
Less suitable: Finished faces, weaker hands, outdoor storage, or a glue-up needing controlled pressure.
Specifications
- Model
- LOLYSIC 16 spring clamps
- Brand
- LOLYSIC
- Price
- ∼£16
- Customer rating
- 4.4/5(65)
- Type
- Spring
- One-handed
- Yes
- Pads
- Movable
- Pieces
- 16
Common questions
Is 158 mm by 118 mm the jaw opening?
The bullet prints that size next to 6 inch. It does not separate a jaw gap from the body size, so the jaw cell is unspecified.
Do the pads stay on?
The listing says movable soft pads. Several UK reviews say the orange tips fall off or break.
Are they easy to open?
UK reviews repeatedly say the spring is very strong and hard on the hand. No opening force is measured.
Our view
The LJHOME set provides four 4 inch one-handed bar clamps for about £8.99, the cheapest bar-clamp row here. A bullet says they convert to spreaders, although it gives no spreader length. The listing also gives no kilogram force, so the separate 1000 psi attribute is not a usable holding figure. UK reviews place them on small craft, mitred skirting and other light jobs. Several buyers describe limited grip, and one says the grip weakened after repeated use. They are a budget way to add four small contact points, but not the choice for a demanding or long joint.
Pros
- Four one-handed bars for about £8.99
- 4 inch capacity suits small craft
- Spreader conversion is stated
- Soft pads are listed
Cons
- No force figure is stated
- No spreader length or throat depth is given
- Reviews report limited or weakening grip
Best for: Small craft, mitred skirting and other light 4 inch holds on a tight budget.
Less suitable: Heavy work, long joints, or anyone who needs a verified force specification.
Specifications
- Model
- LJHOME four 4 inch bars
- Brand
- LJHOME
- Price
- ∼£9
- Customer rating
- 4.3/5(848)
- Type
- One-handed bar
- One-handed
- Yes
- Spreader
- Yes
- Jaw opening
- 102 mm
- Pads
- Soft
- Pieces
- 4
Common questions
How much force do they claim?
The bullets do not state a kilogram. A 1000 psi attribute is not a holding figure.
Do they convert to a spreader?
A bullet says they convert to a spreader. No spreader length is given.
What do UK reviews use them for?
Small craft, mitred skirting, and light holds. Several say the grip is limited and not for heavy work. One review said the grip weakened after several uses.
Our view
The swihorab pack gives you ten small spring clamps for about £6.89, the lowest price in the comparison. The title says 3.5 inches and a bullet states a 2 inch jaw, which are the useful size references. A separate 10 x 10 x 10 mm attribute plainly does not describe the product and should be ignored. No holding force is stated, so these remain clips for light temporary work rather than a measured glue-up choice. The 4.3 rating is based on only 10 reviews, with just two written texts saved. One of those says the pads feel no softer than the body, which limits confidence on delicate finishes.
Pros
- Ten clamps for about £6.89
- 2 inch jaw stated
- Pivoting pads are described
- Light 170 g pack
Cons
- Only 10 ratings and two saved review texts
- No holding force is stated
- The 10 mm dimension attribute is not credible
- One review says the pads are not softer than the body
Best for: Low-cost, small temporary holds where an exact force is unnecessary.
Less suitable: Evidence-led buying, delicate finished faces, or joints needing known pressure.
Specifications
- Model
- swihorab 10 spring clamps
- Brand
- swihorab
- Price
- ∼£7
- Customer rating
- 4.3/5(10)
- Type
- Spring
- One-handed
- Yes
- Jaw opening
- 51 mm
- Pads
- Pivoting
- Pieces
- 10
Common questions
Which size should you believe?
The title says 3.5 inch and a bullet says a 2 inch jaw. The attribute line 10 x 10 x 10 mm does not describe that clamp.
How many written reviews are saved?
The listing says 4.3 from 10. Two written reviews are stored with it. One says the pads feel no softer than the body.
Is a holding weight stated?
No kilogram or pound holding figure is in the bullets.
Our view
These four screw G-clamps cover a stated 10–57 mm opening with a 28 mm throat. The knob gives a different kind of adjustment from the trigger bars, which can suit a thin edge or compact repair. At about £13.99 for four, the pack is reasonably priced for that specific geometry. No force figure is stated, so there is no evidence for comparing pressure with the bar-clamp claims. UK reviews repeatedly say the silicone or tape-backed pads come off, which matters on a finished face. One buyer also found the minimum gap unsuitable for the intended work, so measure both thickness and reach before ordering.
Pros
- Four screw clamps for about £13.99
- 10–57 mm opening is stated
- 28 mm throat depth
- Screw adjustment suits a thin edge
Cons
- No force figure is stated
- Silicone pads come off in reviews
- Limited to a 57 mm opening
- Not a one-handed mechanism
Best for: Thin edges and small work needing a screw G-clamp rather than a trigger bar.
Less suitable: Work over 57 mm, fast one-handed positioning, or finished faces with unreliable pads.
Specifications
- Model
- Four small G-clamps
- Brand
- NS juvyig
- Price
- ∼£14
- Customer rating
- 4.0/5(157)
- Type
- G-clamp
- One-handed
- No
- Jaw opening
- 10–57 mm
- Throat
- 28 mm
- Pads
- Silicone
- Pieces
- 4
Common questions
How wide do they open?
The bullet says 10 to 57 mm, with a depth of 28 mm. One reviewer could not close the gap on their work and returned them.
Do the pads stay on?
The bullet says silicone padding. UK reviews say rubber pads on sticky tape, or flat discs, come off and do not go back.
Is this a one-handed bar?
No. It is a screw G-clamp with a knob. Spreader mode is not stated.
How we compared
Shelf prices, stars, and review counts are the amazon.co.uk figures stored for these eleven listings on 16 October 2026. They are not a live reload. The editorial score on each card is the stored 0–100 figure for this set, which follows the star line. It is not a laboratory test, not a measured clamping force, and not a claim that any listing meets BS EN 847-3.
1
Jaw and the job
25%Name the job first: a light hold, a glue-up, fabric, or a thin edge under about 57 mm. The jaw has to match that work, with room for a scrap pad. An inch figure is only useful once you know whether it is capacity, tool length, or body size.
2
Throat depth
15%Throat is how far the clamp reaches past the edge. In this set Irwin states 62 mm, the WORKPRO 150 mm and 305 mm bullets state 60 mm, and the G-clamp states 28 mm. A missing throat is left blank.
3
Stated force
20%Holding figures are catalogue claims, read against that size. Irwin states up to 63 kg. WORKPRO states 23 kg or 68 kg depending on the size. Conflicting pound lines stay in the score. A missing kilogram stays blank.
4
Pads and spreader
20%A spreader is counted only when the listing says the jaw reverses. Pads help on a finished face only if reviews do not say they fall off. Piece count matters when you need several contact points.
5
Price and reviews
20%Price and the amazon.co.uk star line come last. A 4.7 from 5,967 reviews is a stronger sample than a 4.3 from 10. Two WORKPRO sizes share one review block, so that total is not two studies.
Independent review
Last updated: October 2026
8 sources checked
Clamps buying guide
Start with the job, then the jaw, then the throat, then the stated force. A star rating does not tell you those four. The eleven listings below are amazon.co.uk pages, with the prices and review counts stored for this comparison on 16 October 2026, not a live reload. A spring, a one-handed bar, and a small G-clamp are different tools. A higher price in this set is more pieces, not a sash clamp.
What sort of clamp do you need?
A clamp holds work while you mark, glue, or clip it. In this set the mechanisms are a spring, a one-handed trigger bar, or a small screw G-frame. A spring fixes the force. A trigger bar is what you want when the other hand is positioning the work. The only G-clamp here opens 10–57 mm with a 28 mm throat. No sash clamps and no parallel clamps are among the eleven listings. A camera-mount product was left out because it is a different tool. Name the job before the brand.
Best for
- A light-duty one-handed hold around 150–300 mm, with a stated throat
- Clipping fabric or a backdrop with a spring that states its opening
Not ideal for
- Structural timber, or a panel held only by a 10 lb spring
- Anyone reading a 6 inch body size as a measured jaw
Mistakes to avoid
- 1
Reading the body size as the jaw
A 6 inch line can be the tool, not the opening. LOLYSIC prints 6 inch and 158 mm by 118 mm without a separate jaw gap. EMART separates a 4.5 inch body from a 2 inch opening. Use the bullet that names the gap.
- 2
Trusting the Amazon Basics title
The title says spring clamps. The bullets describe nylon bodies, hardened-steel bars, and a one-handed trigger, with 9.98 kg and 45.36 kg for the two sizes. Use the bullets for the mechanism. Spreader mode is not in those bullets.
- 3
Merging two force lines
On the WORKPRO 150 mm pair the bullet says 68 kg (150 lb) and a highlight also says 50 lb. Do not average them. EMART’s 10 pounds stays in pounds. It is not a tested kilogram and it is not the only clamp for a panel.
What to weigh up
Jaw, throat, and a force you can tie to the size
HighOrder the checks as jaw, then throat, then stated force. That is the sequence in Thomas Graham’s UK clamp-size guide, and it matches the conflicts in this set. Irwin states 150–300 mm, a 62 mm throat and up to 63 kg. The WORKPRO 305 mm pair states 305 mm, a 60 mm throat, 68 kg and a 440 mm spreader. The 150 mm pair states 150 mm, a 60 mm throat and a 285 mm spreader, with a force line that fights itself. Amazon Basics states two openings and two forces, and the title fights the bullets.
Pads, piece count, and the glue clock
HighBuy the piece count the job needs. Two long bars, four short bars, six triggers, eight mixed pieces, or a spring multipack are different purchases. A mixed set adds contact points. It does not lengthen the jaw. Pads stay in the decision only if they stay on the jaw. UK reviews say LOLYSIC tips and the G-clamp’s tape-on pads come off. Clamping after that is how a finished face gets marked.
Which option suits you?
Three typical situations, each with a recommendation from this comparison.
A short bar with a stated spreader
You want two short one-handed bars, a printed force, and a jaw that the listing says will reverse. The WORKPRO 150 mm pair is about £12.99, with a 60 mm throat and a stated 285 mm spreader. The force lines on that listing do not agree.
Fabric, paper, or a backdrop
You are clipping muslin, paper, or a tarp, not closing a wood joint. The EMART pack is twenty springs with a stated 2 inch opening and a 10 lb claim, at about £29.99. A 305 mm bar is a different tool.
Common questions about clamps
Which clamp is the top pick in this set?
The top pick is the Irwin Quick-Grip 300 mm pair, at about £14.90. The listing states a jaw from 150 mm to 300 mm, a 62 mm throat and up to 63 kg, with 4.7 from 5,967 amazon.co.uk reviews, the strongest star line here. It is a light-duty one-handed bar for a repair or a small glue-up. It does not state a spreader. The 50 g weight field is not credible for the pair. This is not a laboratory test.
Which clamp is the best value?
The best value is the WORKPRO 150 mm pair, at about £12.99. You get two short one-handed bars, a 60 mm throat and a stated 285 mm spreader. The bullet says 68 kg (150 lb) and a highlight also says 50 lb, so the force line conflicts. The 4.6 from 8,917 reviews is the same review block as the 305 mm pair, not a second study. Buy it for a short light-duty hold, not for work wider than 150 mm.
Should you buy a one-handed bar or a spring clamp?
Buy a one-handed bar when the other hand is positioning wood and you want a stated jaw and, where printed, a stated force. Irwin, the WORKPRO bars, Amazon Basics and LJHOME are that type. Buy a spring when you are clipping fabric, paper or a tarp and the force can stay fixed. EMART states a 2 inch opening and 10 lb. LOLYSIC and swihorab do not state a holding kilogram. A 305 mm bar is not a backdrop clip.
What does an inch size on a clamp listing mean?
It might be the jaw, the body, or the tool length. EMART states 2 inches (5 cm) between the inside edges, and the body length is 4.5 inches. swihorab states a 2 inch jaw, while a 10 mm cube on that listing is not the clamp. LOLYSIC prints 6 inch and 158 mm by 118 mm without a separate jaw gap, so that opening stays unspecified. Read the bullet that names the opening.
Do these clamps meet a British clamp standard?
Do not treat them as meeting BS EN 847-3. That standard is on the Health and Safety Executive list for clamping devices on woodworking machine tooling, and none of these listings claims it. PUWER 1998 applies to work equipment provided at work, not as a badge on a hobby spring pack. The Consumer Rights Act 2015, section 9, expects satisfactory quality given the description and the price. A pad that falls off is a problem with that listing.
Why do two WORKPRO pairs show the same review count?
The 150 mm pair, B0875TD935, and the 305 mm pair, B0875RW1Y6, share one review block and the same 4.6 from 8,917. That is not two studies. Use the 150 mm bullets for the 150 mm jaw, the 60 mm throat and the 285 mm spreader. Use the 305 mm bullets for the 305 mm jaw, the 60 mm throat, 68 kg and the 440 mm spreader. The written reviews on the short pair talk about a 305 mm set.
How long should a PVA glue-up stay clamped?
Lee Valley’s UK note says clamp PVA for about 30–90 minutes and avoid loading the joint until a full cure, often given as 24 hours. Mark Haley’s UK note says aim for a thin squeeze-out, use cauls, and do not bow the wood. A 10 lb spring is a poor only clamp on a panel. Call a joiner for structural timber, and stop on glass or a finished antique if you cannot pad it.
When is a clamp the wrong tool?
A clamp holds work. It does not cut, sand, or drive a fixing. If the job is a cordless drill, driver, or saw, start with the cordless tools set comparison instead of adding another bar. For a thin edge under about 57 mm, the small G-clamp is the row with a stated 10–57 mm opening and a 28 mm throat. For fabric, use a spring with a stated opening, not a 305 mm woodworking bar.
Our verdict
The top pick is the Irwin Quick-Grip 300 mm pair, at about £14.90, for a light-duty one-handed hold with a stated 150–300 mm jaw, a 62 mm throat and up to 63 kg. Its 4.7 from 5,967 reviews is the strongest star line in this set. The listing does not state a spreader, and the 50 g weight field is not a credible figure for the pair. The best value is the WORKPRO 150 mm pair, at about £12.99, when a short bar, a 60 mm throat and a stated 285 mm spreader are enough. Keep the conflicting 68 kg, 150 lb and 50 lb lines, and do not treat its 8,917 reviews as a separate sample from the 305 mm pair. Springs and the small G-clamps are for other jobs. None of these rows is a laboratory result.
Best overallView offer
Irwin Quick-Grip 300 mm pair
Stated 150–300 mm jaw, 62 mm throat and up to 63 kg, at about £14.90, with 4.7 from 5,967 reviews for light-duty one-handed holding.
Best value
View offer
WORKPRO 150 mm pair
Two 150 mm bars at about £12.99, with a 60 mm throat and a stated 285 mm spreader, and the force-line conflict kept in the score.
Editorial
Editor
DIY & toolsamazon.co.uk listingsUK buying guides
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 clamps
Guides on what to look for, how to use a product, and common mistakes.
Clamps buying guideJob, jaw, throat, stated force, then pads.Best clampsWho each of the eleven is for, and who should skip it.How to use clampsOpen, pad, release, and store, without the price table.One-handed or spring clampsA trigger bar versus a spring, with a condition.Clamps glue-upPVA contact, cauls, and clamp time.
Related comparisons
Sources
Public UK sources for satisfactory quality, workplace equipment, and woodworking-machine standards. Clamp sizes and forces are the amazon.co.uk captures for these eleven ASINs on 16 October 2026, plus the Irwin page for T54122EL7. Prices on amazon.co.uk move.
- Consumer Rights Act 2015, section 9 (retrieved 16 October 2026)
- HSE, PUWER overview (retrieved 16 October 2026)
- HSE, woodworking standards (retrieved 16 October 2026)
- IRWIN, mini one-handed bar clamp (retrieved 16 October 2026)
- Thomas Graham, clamp size and force (retrieved 16 October 2026)
- Lee Valley, working with PVA glues (retrieved 16 October 2026)
- Mark Haley, glue-ups with clamps and cauls (retrieved 16 October 2026)
- amazon.co.uk listings, 16 October 2026 (retrieved 16 October 2026)
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 come from those listings. We did not run a laboratory test. The scores rank a listing inside this set only.