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Mole grips buying guide

Updated: 21 October 2026

You are holding a seized hex nut or a pipe that needs a third hand, and combination pliers keep slipping. A mole grips buying guide is the order of the decision before you spend: jaw shape and length for that job, then how the lock releases, then one pair or a small set. Brand names and star averages come last. This page does not score the table. That lives on the [grip pliers comparison](/hub/pliers/grip-pliers). The Products Compared editorial team used the three amazon.co.uk listings in this set on 19 October 2026. We did not run a lab grip test. A qualifying purchase can earn a commission at no extra cost to you.

You are holding a seized hex nut or a pipe that needs a third hand, and combination pliers keep slipping.

Our top picks

STANLEY Stanley FatMax locking mole grips 250 mm

Best overall

STANLEY Stanley FatMax locking mole grips 250 mm
9.0/10about £23.10
View offer
WORKPRO WORKPRO 3-piece locking pliers set

Best value

WORKPRO WORKPRO 3-piece locking pliers set
8.0/10about £21.99
View offer
Amtech Amtech 130 mm locking grip pliers

Alternative

Amtech Amtech 130 mm locking grip pliers
6.4/10about £4.95
View offer
On this page
  1. 1.Mole grips and locking pliers are the same tool
  2. 2.Buy jaw and length before brand
  3. 3.Lock, pieces, and how the three listings fit
  4. 4.Safety marks this set does not have

Mole grips and locking pliers are the same tool

In a UK ironmonger, mole grips is the everyday name. B&Q treats them as locking pliers: jaws that stay shut after the handles pass an over-centre toggle, so you do not keep squeezing. Vice grips is the same family, borrowed from a brand name. Locking pliers 250mm and vice grips UK are still this class. The three listings are that tool, not water-pump pliers and not a pipe wrench. None is marked for live work. If the nut still has flats, a spanner comes first. Mole grips earn their place as a held pipe, a clamped bracket, or a last-resort bite. The click is on how to use mole grips.

Buy jaw and length before brand

A curved jaw wraps pipe, bar and a hex head. A straight jaw meets flat stock and a sheet edge. Only WORKPRO includes a 165 mm straight jaw. Stanley and Amtech are curved only. That fork is on curved or straight jaw locking pliers. Title length is the tool, not the opening. None of these listings states a clean jaw opening. Stanley prints Cutting Width at 180 mm. The bullets do not describe a cutter, so that figure is not a cutting capacity.
STANLEY Stanley FatMax locking mole grips 250 mm

Testsieger

STANLEY Stanley FatMax locking mole grips 250 mm
9.0/10about £23.10
View offer

Lock, pieces, and how the three listings fit

Set the screw so the jaws kiss the work, add a small extra turn, then close until the handles click over centre. If they close with no effort, the screw is too loose. Stanley names TruLock. WORKPRO names a quick-release lever and an adjustment screw. Amtech puts quick release in the title and does not name an adjuster. WORKPRO is £1.11 less than the Stanley single. That is three jaws, not a tighter lock. Named picks are on the best mole grips page.

Safety marks this set does not have

None of these three cites BS EN IEC 60900:2018, for hand tools up to 1,000 V AC and 1,500 V DC. Alloy steel, TPR and nickel plate are not a voltage rating. Electricity at Work Regulations 1989, regulation 14, is the UK frame: do not work on or near a live conductor where danger may arise unless it is unreasonable for it to be dead, reasonable to work live, and suitable precautions prevent injury. If the pair is work equipment, PUWER 1998 asks that it is taken out of service when the lock fails or the frame cracks. The Consumer Rights Act 2015 covers a new pair that is not as described. This is not legal advice. Use water-pump pliers when the flats are still there. Use mole grips when the lock has to stay shut.

Common questions

What is the difference between mole grips and locking pliers?
There is no useful difference on a UK shelf. Mole grips, locking pliers and vice grips are the same over-centre locking family. B&Q treats mole grips as that class. The three amazon.co.uk listings here are that tool. They are not water-pump pliers and they are not a pipe wrench.
What size mole grips do I need for home DIY?
Most household pipe and fastener jobs want a 250 mm curved pair. Wonkee Donkee's UK note, as a rule of thumb, puts curved pairs at about 125–250 mm with a capacity around 48 mm. None of these listings states a clean jaw opening. A listed 130 mm pair is for a small bag and a light hold, not a seized garden-tap nut.
Should I buy one 250 mm pair or a three-piece set?
Buy the Stanley single if you want one 250 mm curved workshop pair and you will wipe off factory grease. Buy the WORKPRO set if you also want an 180 mm curved jaw and a 165 mm straight jaw in the same box, and you accept UK notes on wobble and a stiff release. The set is £1.11 cheaper. It is not automatically the tighter lock.
Are a £5 pair good enough?
They are good enough for a light, small hold if you have checked that 130 mm is actually long enough. The Amtech C1300 is £4.95 with 4.2 from 237 reviews. The raw file prints three disagreeing lengths, and several UK reviews say the jaws do not grip or do not stay locked. They are the wrong first tool for a stuck valve.
Do plastic handles mean they are safe on electrics?
No. WORKPRO's two-tone TPR is a comfort grip. Stanley's handles are alloy steel. Amtech's nickel plate is a finish. None of the three listings cites BS EN IEC 60900 or a 1,000 V rating. Treat them as bare metal near any conductor.
How do I read length versus jaw opening on amazon.co.uk?
Length on the title is the tool, not the opening. Stanley is 250 mm overall and prints an unexplained Cutting Width of 180 mm, which is not a stated cutter. Amtech's title says 130 mm, while other lines print 12.5 cm and 9 cm. If the listing does not give a jaw opening in millimetres, do not invent one.
When should I skip this category and buy water-pump pliers instead?
Skip mole grips when the nut still has flats and you only need to turn it. Water-pump pliers adjust without a lock and mark less if you stay on the flats. Buy locking pliers when you need the jaws to stay shut so you have a third hand, or when a fastener has already rounded and you are making a controlled last attempt.

Related pages

Grip pliers

Best mole grips UK: top pick, set, or a pocket pair

Curved vs straight jaw locking pliers, which to buy

How to use mole grips: set, lock, and then release

Mole grips for a rounded nut: last bite, then stop

Sources

Public UK sources from the research digest, last checked on 19 October 2026. Shelf prices and star lines are the amazon.co.uk figures in the display file.

  1. Stanley FatMax locking mole grips, amazon.co.uk B01MQK1HT7 (retrieved 19 October 2026)
  2. WORKPRO 3-piece locking pliers set, amazon.co.uk B01KZM2R4O (retrieved 19 October 2026)
  3. Amtech 130 mm locking grip pliers, amazon.co.uk B009DNBIKG (retrieved 19 October 2026)
  4. Wonkee Donkee Tools: which type of mole grips (retrieved 19 October 2026)
  5. HSE: PUWER overview (retrieved 19 October 2026)
  6. BSI: BS EN IEC 60900:2018 (retrieved 19 October 2026)
  7. Screwfix: pliers buying guide (retrieved 19 October 2026)
  8. B&Q: mole grips (retrieved 19 October 2026)