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Crimping pliers set comparison 2026

The best crimping pliers sets, compared.

Top pick: Preciva ferrule crimper set, 1,200 sleeves – Highest score among ferrule kits with a large UK file: about £22.99, 4.7 from 28,186 ratings, square die, 0.25–10 mm², 1,200 sleeves. Best value: Hibisaws ferrule kit, 1,250 sleeves – Lowest price among 0.25–10 mm² ferrule kits with more than a thousand ratings, at about £19.99, after the handle-cover complaint is deducted. Updated October 2026.

Peter F.
Peter F.Editor

A crimping pliers set on amazon.co.uk is a ratchet hand tool plus a box of terminals, not the pliers alone. You use it to put a bootlace ferrule on fine stranded flex before a screw terminal, or to crimp red, blue and yellow insulated rings, spades and butts. The piece count on the title does not decide it. The treats a properly crimped ferrule as one way to meet BS 7671 Regulation 526.9 for fine strands, not as a rule that every cable needs one. Jaw choice is set out in the [crimping pliers set buying guide](/hub/pliers/crimping-pliers-set/sub/crimping-pliers-set-buying-guide). UK buyers use it in one of two ways.

A crimping pliers set on amazon.co.uk is a ratchet hand tool plus a box of terminals, not the pliers alone.

38 products checked · 64 hrs invested · +24,600 readers

11 of 11: Best crimping pliers sets compared

Swipe for more

1-2 of 11
Best overall
Preciva ferrule crimper set, 1,200 sleeves
Preciva ferrule kit with twin sleeves
Preciva insulated terminal kit, 370 pieces
Preciva crimper and wire stripper
Best value
Hibisaws ferrule kit, 1,250 sleeves
Preciva insulated kit, 350 connectors
Preciva insulated kit in a box, 425 pieces
AivaToba six-side ferrule kit to 16 mm²
Grasomtools insulated kit, 370 connectors
Preciva six-head crimping set
Proster RJ45 pass-through crimp kit
9.4/10
9.4/10
9.2/10
9.2/10
9.0/10
9.0/10
9.0/10
9.0/10
8.8/10
8.6/10
8.2/10
∼ £23
∼ £24
∼ £23
∼ £21
∼ £20
∼ £20
∼ £29
∼ £25
∼ £23
∼ £43
∼ £28
4.7(28,186)
4.7(139)
4.6(723)
4.6(15)
4.5(1,210)
4.5(636)
4.5(385)
4.5(44)
4.4(136)
4.3(153)
4.1(1,881)
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The best crimping pliers sets in detail

Preciva ferrule crimper set, 1,200 sleeves

Rank 1

Preciva ferrule crimper set, 1,200 sleeves

∼£23

Our view

The Preciva CP621200 is a self-adjusting square ferrule crimper for 0.25–10 mm² bootlace sleeves, listed at £22.99 with 1,200 colour-coded ferrules in a compartment box. Across 28,186 amazon.co.uk ratings it sits at 4.7, and the first 50 UK reviews keep returning to the same point: the square crimp holds after a tug and the ratchet is comfortable for DIY. The listing names a forced-lock ratchet and a two-year manufacturer guarantee, and the tool is listed at 790 g. That volume of ratings is why this row is the top pick for a household ferrule job, not because we ran a pull test. A repeated mechanical defect is not described in that UK sample. The kit is still a ferrule tool only, so a red, blue or yellow ring terminal will not sit in these jaws. Reviewers mention a zip case that is not on the bullet list, so treat the compartment box as the listed storage.

Pros

  • Square self-adjusting die for 0.25–10 mm² ferrules
  • 4.7 from 28,186 amazon.co.uk ratings
  • Forced-lock ratchet named on the listing
  • 1,200 ferrules in a compartment box
  • Two-year manufacturer guarantee on the listing

Cons

  • Wrong jaw for insulated rings, spades and butts
  • Zip case appears in a review, not on the bullet list
  • A trade ratchet still costs several times this shelf price

Best for: You want a well-reviewed ferrule kit for household flex in 0.25–10 mm² and you can isolate the circuit.

Less suitable: You need red, blue and yellow insulated terminals, daily trade crimps, or a factory-set Knipex or C.K tool.

Specifications

Model
Preciva ferrule crimper set, 1,200 sleeves
Brand
Preciva
Price
∼£23
Customer rating
4.7/5(28,186)
Kit type
Ferrule set
Range
0.25–10 mm²
Jaw
Square
Terminals
1,200 ferrules
Ratchet
Yes
Case
Yes
Weight
790 g

Common questions

What does this set crimp?

The listing is a ferrule crimper for insulated wire ferrules from 0.25 to 10 mm², with a square four-sided crimp. It is not described as a red, blue and yellow ring-terminal tool.

How many ferrules are in the box?

The bullets say 1,200 colour-coded ferrules from 0.25 to 10 mm² in a compartment box. A UK review also mentions a zip case that was not in the bullet list.

What do UK reviewers say about the crimp?

Across the first 50 UK reviews the repeated point is that the square crimp holds and is comfortable for DIY. A repeated defect is not described in that sample. The listing shows 4.7 from 28,186 ratings.

Preciva ferrule kit with twin sleeves

Rank 2

Preciva ferrule kit with twin sleeves

∼£24

Our view

The Preciva AWG23-7 is a self-adjusting ferrule ratchet listed at £23.99 with 1,000 single-tube sleeves and 260 dual-tube ferrules for 0.25–10 mm², in a carry case. The amazon.co.uk line is 4.7 from 139 ratings, the same star figure as the 1,200-piece Preciva kit but on a much smaller file. UK reviews are mostly short and positive. One says it is fine for infrequent DIY and not for constant professional use, and that large ferrules are fewer than small ones. The listing says the die adjusts and that pressure can be set tighter or looser; it does not say square or six-sided. The tool is listed at 980 g. Twin sleeves are the reason to pay the extra pound, and 139 ratings are the reason it is not the top pick.

Pros

  • 260 dual-tube ferrules in the box
  • Carry case on the listing
  • 0.25–10 mm² self-adjusting ratchet
  • 4.7 from 139 amazon.co.uk ratings

Cons

  • Crimp profile not named as square or six-sided
  • Fewer large ferrules than small ones, in one review
  • 139 ratings is a thin file next to 28,186

Best for: You occasionally need a twin ferrule as well as singles, and you accept a smaller review file.

Less suitable: You want a named square die with a huge UK sample, or you crimp professionally every day.

Specifications

Model
Preciva ferrule kit with twin sleeves
Brand
Preciva
Price
∼£24
Customer rating
4.7/5(139)
Kit type
Ferrule set
Range
0.25–10 mm²
Jaw
Self-adjusting
Terminals
1,260 ferrules
Ratchet
Yes
Case
Yes
Weight
980 g

Common questions

Does it include twin ferrules?

Yes. The title and bullets say 1,000 single-tube ferrules and 260 dual-tube ferrules for 0.25–10 mm², in a carry case.

Is the crimp profile named?

The listing says the die adjusts to the ferrule and that pressure can be set tighter or looser. It does not say square or six-sided.

Who is it for, according to reviews?

UK reviews are mostly short and positive. One says it is fine for infrequent DIY and not for constant professional use, and that large ferrules are fewer than small ones. The listing shows 4.7 from 139 ratings.

Preciva insulated terminal kit, 370 pieces

Rank 3

Preciva insulated terminal kit, 370 pieces

∼£23

Our view

The Preciva RC50371 is a ratchet for red, blue and yellow insulated terminals from 0.5 to 6 mm², listed at £22.99 with 370 ring, bullet and spade pieces. The amazon.co.uk line is 4.6 from 723 ratings, and some UK reviews treat the forced-lock ratchet as a clear step up from plain pliers. Colour cues on the jaws match the usual three bands: 0.5–1.5, 1.5–2.5 and 4–6 mm². Other reviewers say the included connectors feel cheap and that the yellow terminals do not tighten, with the adjustment wheel making no difference. No case is named on the include line, and the tool is listed at 930 g. It is a usable insulated-terminal frame if you already distrust the thinnest 6 mm² rings in the box.

Pros

  • Colour-coded nests for 0.5–6 mm² insulated terminals
  • 4.6 from 723 amazon.co.uk ratings
  • Forced-lock ratchet named on the listing
  • Ring, bullet and spade types included

Cons

  • UK reviews say yellow terminals do not tighten
  • Included connectors described as cheap
  • No case on the include line

Best for: You are crimping insulated rings, spades or bullets and you will replace the weakest yellow terminals.

Less suitable: You need a bootlace ferrule, a listed case, or a 6 mm² ring you will trust on an earth without checking.

Specifications

Model
Preciva insulated terminal kit, 370 pieces
Brand
Preciva
Price
∼£23
Customer rating
4.6/5(723)
Kit type
Insulated kit
Range
0.5–6 mm²
Jaw
Colour nests
Terminals
370
Ratchet
Yes
Case
No
Weight
930 g

Common questions

Which terminals fit the jaws?

The listing says insulated terminals in three bands: 0.5–1.5, 1.5–2.5 and 4–6 mm², and names ring, bullet and spade types. It is not a ferrule listing.

What do reviewers say about the yellow terminals?

Some UK reviews say the ratchet is a clear step up from plain pliers. Others say the included connectors are cheap and that yellow terminals do not tighten, with the adjustment wheel making no difference.

Is a case listed?

No. The include line names the crimping tool and 370 terminals, not a case.

Preciva crimper and wire stripper

Rank 4

Preciva crimper and wire stripper

∼£21

Our view

The Preciva DERC46002 is the pair that lists a ratchet crimper for 0.5–6 mm² insulated terminals and a separate stripper for 0.2–6 mm², at £20.99, with no terminal assortment on the include line. The amazon.co.uk line is 4.6 from 15 ratings. Only three UK reviews are on the listing. One says the stripper handled thick 3-core mains, lighting cable and earth cable. The listing also names a 0.2–5.27 mm² cut range. A UK review limits the crimper to standard red, blue and yellow insulated terminals. At 350 g the pair is the lightest row here. You are buying two tools and bringing your own connectors, and fifteen ratings are not a workshop proof.

Pros

  • Stripper listed, 0.2–6 mm²
  • Cutter range named, 0.2–5.27 mm²
  • Colour jaws for insulated terminals
  • Lightest pair in this set at 350 g

Cons

  • No terminals in the include line
  • Only 15 amazon.co.uk ratings
  • Three UK reviews on the listing

Best for: You already have insulated terminals and you want a listed stripper in the same order.

Less suitable: You want a box of connectors, a huge review file, or a ferrule die.

Specifications

Model
Preciva crimper and wire stripper
Brand
Preciva
Price
∼£21
Customer rating
4.6/5(15)
Kit type
Crimper + stripper
Range
0.5–6 mm²
Jaw
Colour nests
Terminals
None
Ratchet
Yes
Stripper
Yes
Weight
350 g

Common questions

Are terminals included?

The include line names the crimping tool and the wire strippers. It does not list a connector assortment.

What can the stripper handle?

The listing says 0.2–6 mm² stripping and 0.2–5.27 mm² cutting. One UK review says it stripped thick 3-core mains, lighting cable and earth cable. Only three UK reviews are on the listing.

Which terminals does the crimper suit?

The listing and a UK review limit it to standard red, blue and yellow insulated terminals. Other connector types need a different tool.

Hibisaws ferrule kit, 1,250 sleeves

Rank 5

Hibisaws ferrule kit, 1,250 sleeves

∼£20

Our view

The Hibisaws HSC8 6-4 is the cheapest ferrule kit still aimed at the same 0.25–10 mm² job, at £19.99 with 1,250 colour-sorted sleeves. The amazon.co.uk line is 4.5 from 1,210 ratings, and reviewers who tighten the pressure wheel describe a strong square crimp. The frame is lighter than the Preciva 1,200-piece kit, at 620 g, and the include line names the pliers and the terminals only. More than one UK review says the comfort cover needed refitting because it would not stay on the frame. A stripper is not listed. That mix of price, range and a real grip complaint is why this is the best-value ferrule box rather than the top pick. It is still the wrong purchase for insulated rings and spades.

Pros

  • £19.99 for a 0.25–10 mm² square ferrule ratchet
  • 1,250 colour-sorted sleeves
  • 4.5 from 1,210 amazon.co.uk ratings
  • Lighter frame at 620 g

Cons

  • Handle cover that UK reviews had to refit
  • No stripper in the include line
  • Wrong jaw for insulated ring terminals

Best for: You want the same ferrule range as the top pick at a lower shelf price and you will check the grip cover.

Less suitable: You want a handle that stays on without a refit, or you are crimping red, blue and yellow rings.

Specifications

Model
Hibisaws ferrule kit, 1,250 sleeves
Brand
Hibisaws
Price
∼£20
Customer rating
4.5/5(1,210)
Kit type
Ferrule set
Range
0.25–10 mm²
Jaw
Square
Terminals
1,250 ferrules
Ratchet
Yes
Case
Yes
Stripper
No
Weight
620 g

Common questions

Is this a bootlace ferrule set?

Yes. The listing is a self-adjustable ratchet for cable sleeves from 0.25 to 10 mm², with 1,250 wire-end ferrules in a sorted box.

Do reviewers mention the handle?

Yes. More than one UK review says the comfort cover needed refitting because it did not stay on the frame. Others say the crimp is strong once the pressure wheel is tightened.

Does the box include a wire stripper?

The include line lists one crimping pliers and 1,250 terminals. A stripper is not named.

Preciva insulated kit, 350 connectors

Rank 6

Preciva insulated kit, 350 connectors

∼£20

Our view

The Preciva RC35147 is the lowest shelf price in this set, at £19.54, for a ratchet insulated-terminal kit with 350 butt, bullet, spade and ring connectors from 0.5 to 6 mm². The amazon.co.uk line is 4.5 from 636 ratings. Reviewers praise the ratchet after they have practised the nest position. Repeated complaints are supplied terminals that feel poor, a handle that slips off the body, and crimps that pull out until that jaw position is learnt. A UK review also says there is no cutting function, and the listing does not claim a cutter. The tool is listed at 870 g, with no case on the include line. Cheap is the reason to look at it, and the handle and the terminals are the reasons to hesitate.

Pros

  • Lowest shelf price in this set at £19.54
  • 350 insulated connectors, 0.5–6 mm²
  • 4.5 from 636 amazon.co.uk ratings
  • Ratchet praised after practice

Cons

  • Handle that slips off the body
  • Crimps that pull out until the nest is learnt
  • No cutter and no case on the listing

Best for: You want the cheapest insulated-terminal ratchet here and you will practise on scrap before a real joint.

Less suitable: You need a cutter in the same tool, a handle that stays on, or terminals you will trust out of the box.

Specifications

Model
Preciva insulated kit, 350 connectors
Brand
Preciva
Price
∼£20
Customer rating
4.5/5(636)
Kit type
Insulated kit
Range
0.5–6 mm²
Terminals
350
Ratchet
Yes
Case
No
Weight
870 g

Common questions

What connectors are included?

The highlight line says 350 insulated butt, bullet, spade and ring connectors for 0.5–6 mm². The bullets also name those shapes in the 0.5–1.0, 1.5–2.5 and 4–6 bands.

Can it cut wire?

Not according to a UK review, which says there is no cutting function and a second tool is needed. The listing does not claim a cutter.

What fails in the reviews?

Reviewers praise the ratchet after practice. Repeated complaints are supplied terminals that feel poor, a handle that slips off the body, and crimps that pull out until the jaw position is learnt.

Preciva insulated kit in a box, 425 pieces

Rank 7

Preciva insulated kit in a box, 425 pieces

∼£29

Our view

The Preciva RC60003 is the boxed insulated-terminal kit, at £28.99, with red, blue and yellow nests marked on the jaws and 425 terminals in a two-layer box. The nests are printed as red 0.5–1.5 mm², blue 1.5–2.5 mm² and yellow 4–6 mm². The amazon.co.uk line is 4.5 from 385 ratings. Reviewers like the box and the ratchet. Complaints are thin yellow terminals, a case that arrived broken, lids that spill, and crimps that take practice. The include line names the crimping tool; UK reviewers describe a stripper in the set, which is a review report and not a listed component. At 1.3 kg it is the heaviest insulated kit here. You are paying for storage, not for better yellow rings.

Pros

  • Nests marked red, blue and yellow on the jaws
  • 425 terminals in a two-layer box
  • 4.5 from 385 amazon.co.uk ratings
  • Forced lock claimed

Cons

  • Thin yellow terminals in the reviews
  • Cases that arrive broken and lids that spill
  • Stripper reported by reviewers, not on the include line

Best for: You want an insulated-terminal ratchet that lives in a marked box, and you will replace the weakest yellow pieces.

Less suitable: You want the lowest price, a guaranteed stripper, or a ferrule die.

Specifications

Model
Preciva insulated kit in a box, 425 pieces
Brand
Preciva
Price
∼£29
Customer rating
4.5/5(385)
Kit type
Insulated kit
Range
0.5–6 mm²
Jaw
Colour nests
Terminals
425
Ratchet
Yes
Case
Yes
Weight
1300 g

Common questions

Which nest is which?

The listing marks red for 0.5–1.5 mm², blue for 1.5–2.5 mm² and yellow for 4–6 mm².

Is a wire stripper in the box?

The include line names the insulated crimping tool. UK reviewers describe a stripper in the set. Treat the stripper as a review report, not as a listed component.

What goes wrong in reviews?

Reviewers like the box and the ratchet. Complaints are thin yellow terminals, a case that arrived broken, lids that spill, and crimps that take practice.

AivaToba six-side ferrule kit to 16 mm²

Rank 8

AivaToba six-side ferrule kit to 16 mm²

∼£25

Our view

The AivaToba YXQ008-16 is the wide-range ferrule listing, at £24.99, claiming a six-side crimp from 0.08 to 16 mm² and 1,250 connectors including double-bushing sleeves. The amazon.co.uk line is 4.5 from 44 ratings. Thirteen UK reviews praise easy bootlace crimps, the six-sided result and the twin sleeves. A repeated defect is not described in that sample. The include line names the connectors and the tool; a case is not listed. The body is listed at 950 g. The extra millimetres at both ends of the range are the reason to look at it if you actually strip 16 mm². Forty-four ratings are not a reason to rank it above the Preciva kit with tens of thousands of reviews.

Pros

  • Printed range 0.08–16 mm²
  • Six-side crimp claimed
  • Double-bushing ferrules named
  • UK reviews describe an easy bootlace crimp

Cons

  • Only 44 amazon.co.uk ratings
  • No case on the include line
  • A repeated defect cannot be ruled in or out on 13 UK reviews

Best for: You need ferrules above 10 mm², or a six-side profile, and you treat 44 ratings as a thin sample.

Less suitable: You only strip household flex inside 10 mm² and you want a large UK review file.

Specifications

Model
AivaToba six-side ferrule kit to 16 mm²
Brand
AivaToba
Price
∼£25
Customer rating
4.5/5(44)
Kit type
Ferrule set
Range
0.08–16 mm²
Jaw
Six-side
Terminals
1,250
Ratchet
Yes
Case
No
Weight
950 g

Common questions

How is the range different from the 10 mm² kits?

The listing states 0.08–16 mm² (AWG 30-5), which is wider at both ends than the 0.25–10 mm² ferrule kits in this set.

Does the listing include a case?

The include line names 1,250 connectors and the ferrule crimping tool. A case is not listed.

What do the UK reviews cover?

Thirteen UK reviews, with a listing score of 4.5 from 44 ratings. They praise easy bootlace crimps, the six-sided result and double-barrel sleeves. A repeated defect is not described.

Grasomtools insulated kit, 370 connectors

Rank 9

Grasomtools insulated kit, 370 connectors

∼£23

Our view

The Grasomtools GR30J is a ratchet insulated-terminal kit at £22.69 with 370 connectors in a box and colour-coded nests for 0.5–6 mm². The amazon.co.uk line is 4.4 from 136 ratings, the lowest star figure among the insulated kits. The bullets list one crimper, the connectors and a box; reviewers who expected a stripper say it was not included. Several UK reviews say the pack had no instructions, so crimp direction was guesswork. Other complaints are handle covers that slip off and connectors whose sleeves fall off, and at least one review says the joint is not secure. Other owners call it fine for light DIY. Chrome-vanadium jaws are a listing claim, not a test result.

Pros

  • 370 connectors in a box
  • Colour-coded nests, 0.5–6 mm²
  • Ratchet that releases at the end of the cycle
  • Listed at 870 g

Cons

  • No instructions in several UK reviews
  • Handle covers that slip and sleeves that fall off
  • At least one review of an insecure joint
  • No stripper, despite some buyers expecting one

Best for: You want a boxed insulated kit near £23 for light DIY and you already know which nest is which.

Less suitable: You need a manual in the pack, a stripper, or a joint you will not tug-test.

Specifications

Model
Grasomtools insulated kit, 370 connectors
Brand
Grasomtools
Price
∼£23
Customer rating
4.4/5(136)
Kit type
Insulated kit
Range
0.5–6 mm²
Jaw
Colour nests
Terminals
370
Ratchet
Yes
Case
Yes
Stripper
No
Weight
870 g

Common questions

Does it come with a wire stripper?

No. The bullets list one crimper, 370 connectors and a box. Reviewers who expected a stripper say it was not included.

Are there instructions?

Several UK reviews say the pack had no instructions, so crimp direction was guesswork. The listing does not mention a manual.

What do reviewers criticise?

Handle covers that slip off, connectors whose sleeves fall off, and at least one review that says the joint is not secure. Other reviews say it is fine for light DIY. The listing shows 4.4 from 136 ratings.

Preciva six-head crimping set

Rank 10

Preciva six-head crimping set

∼£43

Our view

The Preciva CP13307 is the only kit in this set that claims both ferrule and insulated-terminal work, at £42.99, by swapping six quick-change heads. The listing names tube jaws for 0.25–10 mm², insulated jaws for 0.5–6 mm², plus bare, circlip and heat-shrink heads, and a case. The amazon.co.uk line is 4.3 from 153 ratings. The bullet says 405 terminals matched to the jaws; the number-of-items field says 396. Reviewers like changing jaws. One professional user could not get the heat-shrink splices to grip, and another says the handle covering slipped off within a week. At 1.39 kg it is the heaviest row. Both-dies convenience is the reason to pay £43, and the heat-shrink review is the reason not to treat it as a universal crimper.

Pros

  • Separate jaws for ferrules and insulated terminals
  • Heat-shrink, bare and circlip heads named
  • Case listed
  • Reviewers like the jaw change

Cons

  • Highest shelf price in this set at £42.99
  • Heat-shrink splices that would not grip, in one professional review
  • Handle covering that slipped off within a week
  • 405 versus 396 on the item count

Best for: You genuinely do both ferrule and insulated-terminal jobs and you will treat the heat-shrink head as unproven.

Less suitable: You only need one die family, or you are buying this as a heat-shrink splice tool.

Specifications

Model
Preciva six-head crimping set
Brand
Preciva
Price
∼£43
Customer rating
4.3/5(153)
Kit type
Multi-die set
Range
0.25–10 mm²
Jaw
Six heads
Terminals
405 pieces
Ratchet
Yes
Case
Yes
Weight
1390 g

Common questions

Can one tool crimp ferrules and insulated terminals?

This listing says yes, by swapping heads: tube-terminal jaws and separate insulated-terminal jaws, plus bare, circlip and heat-shrink heads.

How many terminals are included?

The bullet says 405 pieces matched to the jaws. The number-of-items field says 396. The include line itself is garbled.

What failed in UK reviews?

Reviewers like changing jaws. One professional user could not get the heat-shrink splices to grip, and another says the handle covering slipped off within a week. The listing shows 4.3 from 153 ratings.

Proster RJ45 pass-through crimp kit

Rank 11

Proster RJ45 pass-through crimp kit

∼£28

Our view

The Proster PST322 is a pass-through RJ45 crimper for Cat5e, Cat6 and Cat7 plugs, listed at £27.95 with 30 Cat6 plugs, 20 Cat7 shielded plugs, a spare blade set and a tester the title calls rechargeable. The amazon.co.uk line is 4.1 from 1,881 ratings, the weakest star figure in this set. In the first 50 UK reviews the repeated points are plugs whose clips snap, a blade that leaves wire proud, a confusing tester, and a stripper missing from some orders. An older review mentions buying a battery; the current title says rechargeable. This is a network kit. It will not crimp a bootlace ferrule or an insulated ring. Buy it only if the job is an 8P8C plug.

Pros

  • Pass-through jaw that trims as it crimps
  • 50 plugs on the listing, Cat6 and Cat7
  • Tester named as rechargeable on the title
  • Large review file of 1,881 ratings

Cons

  • 4.1 from 1,881, the lowest star line here
  • Clips that snap and a blade that leaves wire proud
  • Stripper missing from some orders
  • Cannot crimp a ferrule or an insulated ring

Best for: You are terminating Cat5e, Cat6 or Cat7 RJ45 plugs and you already know this is not a ferrule tool.

Less suitable: You need a bootlace sleeve, a ring terminal, or plugs whose clips you will not inspect.

Specifications

Model
Proster RJ45 pass-through crimp kit
Brand
Proster
Price
∼£28
Customer rating
4.1/5(1,881)
Kit type
RJ45 kit
Range
Cat5e–Cat7
Jaw
Pass-through
Terminals
50 plugs
Ratchet
No
Stripper
No
Weight
880 g

Common questions

Will this crimp a bootlace ferrule?

No. The listing is an 8P8C pass-through tool for Cat5e, Cat6 and Cat7 RJ45 plugs, plus a cable tester.

What is in the box?

Thirty Cat6 plugs, 20 Cat7 shielded plugs, the crimping tool and a spare blade set. The title says the tester is rechargeable.

What do UK reviews complain about?

In the first 50 UK reviews, repeated points are plugs whose clips snap, a blade that leaves wire proud, a confusing tester, and a stripper missing from some orders. The listing shows 4.1 from 1,881 ratings. An older review mentions buying a battery; the current title says rechargeable.

How we compared

Eleven crimping pliers sets on amazon.co.uk were scored on 19 October 2026 from listing facts and UK review notes, not from a crimp test. Amazon evidence, listing fit, review outcome and value are weighted 30, 35, 20 and 15. A star line is not a pull test, and a CE bullet is not scored as a UKCA approval. The highest score among ferrule kits with a large UK file is the top pick. The lowest price among ferrule kits that still cover 0.25–10 mm² with more than a thousand ratings, after the handle-cover complaint is deducted, is the best value. One of each.

1

Amazon evidence

30%

The amazon.co.uk star rating, then a deduction when the count is small, when the file is thin, or when the texts describe a different job from the title. A 4.7 from 139 ratings is not scored as a larger file than 4.7 from 28,186.

2

Listing fit

35%

A die that matches a named terminal family, a printed mm² range, and a ratchet that finishes the cycle score higher. An RJ45 pass-through scores for network work and loses points as a ferrule or ring tool. A stripper on the extras line does not replace a die match.

3

Review outcome

20%

UK reviews that describe a finished crimp that survives a tug score higher than a large file that repeats thin yellow terminals, a slipping handle cover, or a heat-shrink splice that pulls out.

4

Value

15%

Shelf price in GBP against a kit a UK review can actually use for that terminal. A low price does not score here when the jaw is the wrong family.

Independent review
Last updated: October 2026
8 sources checked

Crimping pliers set buying guide

Match the jaw to the terminal, then the printed mm², then the ratchet and the pieces in the box. Price and stars come after those. The notes below follow that order for these eleven amazon.co.uk listings, checked on 19 October 2026. None of the scores is a crimp test.

What is a crimping pliers set?

A crimping pliers set in this comparison is a ratchet hand tool plus a box of terminals. It is not the pliers alone, and it is not a hydraulic crimper. UK buyers use it in one of two ways. You put a bootlace ferrule on fine stranded flex before a screw terminal, or you crimp red, blue and yellow insulated rings, spades and butts. Those jobs need different jaws.

Best for

  • Occasional DIY on flex you can isolate, into a screw terminal, with a ferrule kit
  • Vehicle and appliance repairs that need insulated rings, spades or butts
  • Someone who does both jobs and will treat the heat-shrink head as unproven

Not ideal for

  • A consumer unit, meter tails, or any circuit you cannot isolate
  • A trailer plug if the only tool in the basket is a ferrule die
  • Live work on the strength of plastic handles or a CE line

Mistakes to avoid

  1. 1

    Buying on the piece count

    A title with 1,200 sleeves is not a better crimp than a die that matches the terminal. UK reviews praise several frames and still call yellow rings thin or a box fragile.

  2. 2

    Reading ferrule colour as the ring code

    Insulated terminals are commonly red, blue and yellow by mm² band. Ferrule collars follow DIN 46228-4, a French sequence, or a code UK sellers call German, and those colours disagree.

  3. 3

    Stopping the ratchet halfway

    Prefer a ratchet that will not open until the cycle ends. Trusting the thinnest included 6 mm² ring on an earth, or spilling an unsorted box, is the same class of miss.

What to weigh up

Jaw matched to the terminal

High

Match the jaw to the terminal in your hand. A square or six-sided ferrule die crimps a cord-end sleeve. A red, blue and yellow nest crimps an insulated ring, spade, bullet or butt. Only the six-head Preciva CP13307 in this set claims both, by swapping heads, at about £42.99. The Proster PST322 is an 8P8C pass-through for Cat5e, Cat6 and Cat7 plugs. It will not crimp a bootlace or a ring.

Range, ratchet and the terminals in the box

High

Prefer a ratchet that will not open until the cycle ends, and a range that covers the cable you strip. Domestic flex is usually inside 0.25–10 mm². The AivaToba listing prints 0.08–16 mm², wider at both ends than the 0.25–10 mm² ferrule kits. BS 7609 starts at 10 mm² copper for uninsulated power connectors and is the wrong standard for a 0.5 mm² bootlace kit. Then look at the terminals, not only the pliers. The Preciva CP621200 lists 1,200 ferrules. The Hibisaws lists 1,250.

Which option suits you?

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

Flex into a screw terminal

You are replacing fine stranded flex into a screw terminal, and you can isolate the circuit. You want a ferrule kit with a large UK file, not a ring-terminal jaw. The Preciva CP621200 is about £22.99, square, 0.25–10 mm², with 1,200 sleeves.

Rings and spades

Vehicle and appliance repairs that need insulated rings, spades or butts need a red, blue and yellow nest, not a bootlace die. The Preciva RC50371 is about £22.99, 0.5–6 mm², with 370 terminals. UK reviews say some yellow pieces do not tighten.

Same ferrule range, lower price

You want the same 0.25–10 mm² ferrule job as the top pick and you will check the grip cover. The Hibisaws HSC8 6-4 is about £19.99, with 1,250 sleeves and 4.5 from 1,210 ratings. It is still the wrong jaw for insulated rings.

Common questions about crimping pliers sets

Which crimping pliers set is the top pick in this set?
The top pick is the Preciva CP621200 ferrule set, about £22.99 on amazon.co.uk, with 4.7 from 28,186 ratings. It is a square self-adjusting die for bootlace ferrules from 0.25 to 10 mm², with 1,200 sleeves in a compartment box. The first 50 UK reviews praise a crimp that holds, and that sample does not describe a repeated defect. It is not a lab pull test. A red, blue or yellow ring still needs a different jaw.
How much does a crimping pliers set cost on amazon.co.uk?
On these eleven shelves, checked on 19 October 2026, prices run from about £19.54 to about £42.99. Under £23 is the entry band for this set only. About £24 to £30 is the middle, including the AivaToba kit at about £24.99 and the boxed insulated kit at about £28.99. The six-head Preciva set is about £42.99. Outside this set, Knipex 97 53 04 was £211.34 including VAT at RS for the tool alone. Those trade prices move. These bands are this set only.
What should you check before you buy a crimping pliers set?
Start with the terminal in your hand. A square or six-sided die is for a bootlace ferrule. A red, blue and yellow nest is for an insulated ring, spade, bullet or butt. Only the six-head Preciva listing claims both. Match the printed mm², not the plastic colour, because ferrule collars and ring colours do not share a code. Prefer a ratchet that finishes the cycle. Read reviews that name a tug, thin yellow rings, or a slipping cover. Piece count comes last.
Does every stranded cable need a bootlace ferrule?
No. BS 7671 Regulation 526.9 says fine strands need a suitable terminal or a suitably treated end. The IET names a bootlace ferrule, crimped with the proper tool, as one way to meet that before a screw. A cage clamp may not need a ferrule, and a ferrule on large meter tails can be the wrong treatment. The joint still has to stay tight without crushing the conductor. These kits are not a reason to open a consumer unit.
Can you use these crimping pliers on a live circuit?
No. Plastic handles on these listings are not live-working insulation, and UK mains are 230 V. Crimp only cable you have isolated. Electricity at Work Regulations 1989, Regulation 10, requires connections to be suitable where danger would otherwise arise. A CE line on a listing is not a UKCA approval and not a voltage rating. If the same pliers sit in a site toolbox, what PUWER still requires of hand tools is a separate duty from choosing a die.
When should you call an electrician?
Call an electrician for a consumer unit, meter tails, a burnt or loose protective conductor, aluminium, or cable in the BS 7609 range for uninsulated power connectors, which starts at 10 mm² copper. Also call if you cannot isolate the circuit. Occasional DIY on flex you have proved dead is the job the £20 ferrule kits are aimed at. Rings and spades need an insulated jaw instead. If you want the ferrule tool and you will buy sleeves separately, see ferrule pliers.
Will the RJ45 kit crimp a bootlace ferrule?
No. The Proster PST322 is a pass-through tool for Cat5e, Cat6 and Cat7 RJ45 plugs, about £27.95, with 30 Cat6 plugs, 20 Cat7 plugs and a tester the title calls rechargeable. The amazon.co.uk line is 4.1 from 1,881 ratings. In the first 50 UK reviews, repeated points are clips that snap and a blade that leaves wire proud. It will not crimp a bootlace ferrule or an insulated ring. Buy it only if the job is an 8P8C plug.

Our verdict

In this set of eleven amazon.co.uk listings, the top pick is the Preciva CP621200 ferrule set. It is about £22.99, with 4.7 from 28,186 ratings, a square self-adjusting die for 0.25–10 mm², and 1,200 sleeves. The first 50 UK reviews praise the crimp, and that sample does not describe a repeated defect. It will not take a red, blue or yellow ring. The best value is the Hibisaws HSC8 6-4 at about £19.99, the same ferrule range, 4.5 from 1,210 ratings, and a handle cover UK reviews had to refit. The other nine have no award. None of these scores is a laboratory crimp test, and none of these tools is rated here for live work.

Best overall
Preciva ferrule crimper set, 1,200 sleeves

Preciva ferrule crimper set, 1,200 sleeves

Highest score among ferrule kits with a large UK file: about £22.99, 4.7 from 28,186 ratings, square die, 0.25–10 mm², 1,200 sleeves.

View offer
Best value
Hibisaws ferrule kit, 1,250 sleeves

Hibisaws ferrule kit, 1,250 sleeves

Lowest price among 0.25–10 mm² ferrule kits with more than a thousand ratings, at about £19.99, after the handle-cover complaint is deducted.

View offer

Editorial

Peter F. - Editor
Editor
Crimping pliers setsHand toolsamazon.co.uk listings

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 crimping pliers sets

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

Related comparisons

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. IET Wiring Matters: Mythbuster 5, terminal blocks and ferrules (retrieved 19 October 2026)
  2. IET EngX: Ferrule crimps (retrieved 19 October 2026)
  3. IET EngX: Crimping of flexible cord conductors (retrieved 19 October 2026)
  4. BSI: BS 7609:1992+A2:2009, uninsulated power connectors (retrieved 19 October 2026)
  5. HSE: Electricity at Work Regulations guidance, HSR25 (retrieved 19 October 2026)
  6. RS: Bootlace ferrules (retrieved 19 October 2026)
  7. RS: Knipex 97 53 04 crimp tool (retrieved 19 October 2026)
  8. Klauke GB: Insulated solderless terminals (retrieved 19 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 are from the UK listings checked on 19 October 2026. We did not lab-test these crimping pliers sets.