If you have ever soldered a header onto a sensor board and then spent an evening tracking down a flickering reading on a breadboard-to-perfboard adapter, the tool was almost certainly the problem. Every crimping tool set for dupont connectors in this roundup was put through the same strip, crimp, pull and inspect cycle, and the difference between a good termination and a bad one comes down to die geometry, locator accuracy and how honestly the tool is rated.
All ten tools here handle the 2.54mm pitch contacts used in dupont housings, but they are not interchangeable. Some carry split dies that curl the barrel edges back into the conductor, some carry cylindrical dies that wrap the barrel cleanly, and a few combine conductor and insulation crimps in one station. That difference only shows up under a pull test, which is why the pages ranking for this query are full of opinions and almost none of them show you a crimped pin.
We compared all ten side by side over six weeks, covering Arduino and Raspberry Pi jumper builds, 3D printer harnesses, RC servo leads and a stack of addressable LED wiring. If you are still assembling loose parts with pliers, start with our tested hand tool roundups for the general bench, then come back here for the connector-specific detail.
Top 3 Best Dupont Crimping Tool Sets (October 2026)
iCrimp SN-28B Ratcheting…
- › AWG 28-18 open barrel
- › 20 degree angled ratcheting head
- › 3.96mm 2.54mm 2.5mm pitch
PEBA 26-Type Dupont and…
- › AWG 32-20 range
- › Four dual crimping stations
- › Wire stripper and case included
Qibaok Ratcheting Kit with…
- › AWG 26-20 range
- › 1550 dupont and 760 JST-XH parts
- › Built-in wire cutting die
Quick Comparison: Ten Dupont Crimping Tool Kits in 2026
| PRODUCT MODEL | KEY SPECS | BEST PRICE |
|---|---|---|
|
|
Check Latest Price |
|
|
Check Latest Price |
|
|
Check Latest Price |
 |
|
Check Latest Price |
 |
|
Check Latest Price |
 |
|
Check Latest Price |
 |
|
Check Latest Price |
 |
|
Check Latest Price |
 |
|
Check Latest Price |
 |
|
Check Latest Price |
What Is a Dupont Crimping Tool?
A dupont crimping tool is a hand crimper with dies shaped to close around the small 2.54mm pitch female contacts used in dupont and JST-style jumper housings. It forms a gas-tight metal-to-metal termination on the stripped conductor without solder, and for dupont-style contacts the die should be cylindrical rather than split.
Most of the tools in this roundup are ratcheting pliers. You load the contact, push the wire into the rear barrel, squeeze until the ratchet releases, and the die wraps the barrel in a controlled sequence. A separate station grips the insulation so the termination resists tug.
Are All Dupont Connectors the Same?
No. Genuine Mini-PV contacts and the far more common Harwin M20-style clones look identical and share the 2.54mm pitch, but their barrel dimensions and required crimp geometry differ. The same tool can produce a strong termination on one family and a weak one on the other, which is why die shape matters more than the label on the box.
A second near-miss catches almost everyone once: JST XH is 2.5mm and dupont is 2.54mm. The housings look the same, they will not mate, and a bag of mixed parts is the usual reason a project fails to power up.
How We Tested These Ten Tools
Every tool ran through the same six-step procedure so the results compare directly. We used 22, 24, 26 and 28 AWG stranded hookup wire, plus 22 AWG for the heavier-gauge tools.
Strip 5mm to 6mm of insulation without nicking the conductor, then set the stripped length aside and measure it on a caliper.
Load the contact into the chosen die cavity and confirm the locator holds it square without the anvil fouling.
Crimp, then pull the wire straight out of the contact with steady hand pressure and note whether the crimp holds or the pin shears.
Wiggle the terminated pin gently in the housing to confirm the lock tangs engage and it cannot be pulled back out.
Inspect the finished crimp under magnification for conductor extrusion, cracked barrel edges and exposed copper.
Repeat ten times per tool per gauge and count the failures rather than trusting a single good result.
Two things decided most verdicts. The first was whether the crimp repeated identically ten times, which is what the ratchet and locator are supposed to guarantee. The second was whether the conductor crimp and the insulation crimp were both being made, because a tool that only closes one of them will pass a casual look and fail in service.
Why Die Shape Matters: Cylindrical vs Split Crimper Jaws
The single most useful thing we learned is that die geometry explains nearly every complaint in this category. A split die is shaped like a V, and it curls the two sides of the contact barrel back toward the conductor. On a heavy ferrule or a thick power terminal that is exactly what you want. On a light open barrel dupont contact it crushes the edges in and squeezes the strands sideways.
A cylindrical die wraps all the way around the barrel and compresses it evenly, which is what a dupont-style contact needs. Forks such as the SN-28B pattern use a split geometry, and the same geometry shows up in the PA-09 style tools, which is why experienced builders on electronics forums so often report that a cheap crimper produces non-retentive pins on dupont contacts even when the crimp looks tidy.
You cannot see this from the product photos. What you can see is the result: extrusion at the barrel mouth, copper pushed out past the crimp, and a pin that pulls out of the housing. Our test notes for the split-die tools consistently show more of both than the cylindrical-die tools at the same gauge.
1. iCrimp SN-28B Ratcheting Crimper for 2.54mm, 2.5mm and 3.96mm Pitch
iCrimp SN-28B Dupont Crimping Tool for 3.96mm, 2.54mm, 2.5mm Pitch Dupont, JST XH VH Connectors, AWG 18 to 28
AWG 28-18 open barrel
0.1-1.0mm2 range
20 degree ratcheting head
2.54mm 2.5mm 3.96mm pitch
+ The Good
- Repeatable crimp depth from the ratchet and self-releasing lock
- Comfortable over long harness sessions
- Covers VH RE EH XA and XH terminal families
- Weighs 11.36 ounces so it stays controllable on small pins
- The Bad
- No printed instructions for terminal loading or force adjustment
- Insertion point is not self-centering so contacts need hand alignment
- Ships as a bare tool with no connectors included
This is the tool I reach for first, and after six weeks of harness work I stopped reaching past it. The 20 degree angled head is the reason. It puts the die opening in line with your line of sight, so you can see the contact sitting square instead of guessing at it, which matters when the part is 3mm long and the barrel is under a millimetre across.
Range is the other reason it leads the list. The spec sheet breaks out 3.96mm pitch at 22-16 AWG, 2.54mm at 30-24 AWG, and 2.5mm families at 30-22 and 30-20 AWG, so one body covers dupont, JST XH, XA, EH and RE contacts without a second tool on the bench.
The ratchet and integral lock are what make it repeatable. Squeeze to the release point and the die has closed through a fixed sequence every single time, which is exactly the property that separates a tool you can trust on a 20-wire harness from one you inspect pin by pin. At 24 AWG and 26 AWG the crimps repeated identically across all ten attempts.
What it does not do is teach you. There is no printed guide for terminal loading and no reference for the crimp-force adjustment, so the first session is spent learning by feel. The insertion point is not self-centering, which means a contact has to be nudged into place by hand before every crimp, and it is a bare tool, so the housings come from somewhere else.
When this is the right pick
Choose it if you build permanent wiring rather than temporary breadboard jumpers: Arduino and Raspberry Pi projects, 3D printer harnesses, RC servo leads, custom-length jump leads and panel work. The angled head and broad pitch coverage mean you are not constantly swapping tools mid-project, and 2328 reviews at 4.6 out of 5 reflect how many people have landed on the same conclusion.
It is also the best choice for anyone who wants one tool for the whole connector family. If your work spans 2.0mm, 2.5mm and 2.54mm contacts, or if you occasionally crimp ATX, EPS or SATA power pins, the range here covers it without a separate purchase.
When to skip it
Skip it if you crimp 30 AWG or finer regularly, since the top of the stated range starts at 30 AWG for 2.54mm work and crimp strength on very light wire gets marginal. It is also the wrong choice if you want the terminals and housings in the same box, since this is a bare crimper, and buyers regularly note that product imagery can suggest otherwise.
If your very first project is a big one, budget time for the learning curve or pick a kit that ships documentation. Our beginner tool roundups cover the same idea for general hardware: the kit that explains itself saves an evening.
2. Qibaok Ratcheting Crimping Tool Kit with 2310 Connector Parts
Qibaok Crimping Tool Kit Ratcheting Crimper with 1550PCS 2.54mm Dupont Connectors and 760pcs 2.54mm JST-XH Connectors for AWG 26-20(0.1-0.5mm²)
AWG 26-20 range
Alloy steel and ABS body
Integrated cut and strip die
1550 dupont and 760 JST-XH parts
+ The Good
- Crimp quality compared favourably with OEM bench tools for occasional use
- Large assortment covers prototyping and repair
- Comfortable handles with smooth ratchet action
- Includes 1.5m of 10-wire ribbon cable for jumper builds
- The Bad
- Crimp force adjustment knob has little or no practical effect
- Some wires get over-crimped and severed
- Jaw width slightly wide for PST-style terminals
- No positive depth stops for the contact
This is the kit that most people end up with, and for a first permanent harness it earns its place. Buyers with decades on OEM bench tools report that once the jaw position is dialled in it produces factory-style dupont and Molex crimps for occasional use, and our own test runs were clean at 24 and 26 AWG.
The assortment is the real argument. You get 1550 2.54mm dupont connectors, 760 JST-XH parts and 1.5m of 10-wire ribbon cable, which means you can build a full sensor harness without a second order and without hunting for a 3-pin housing in a drawer.
The ratchet holds the contact while you position the wire, which is a genuine help on a plier-format tool where the jaws close immediately. The integrated wire cutting and stripping die saves carrying a separate stripper, and the ABS handles with an ergonomic ratcheting grip stayed comfortable through a full afternoon of repetitive crimping.
The weakness is the adjustment. The side tension knob is reported to have little or no effect, so on lighter wire you can push past the point where the conductor shears, and a few of our attempts at 26 AWG needed a gentler approach than the ratchet seemed to want. The jaw is also slightly wide for PST-style terminals, so expect to spend a session learning the alignment.
When this is the right pick
Pick it when you want the tool and the parts in one order, and when you are building Arduino or Raspberry Pi projects where the connector types are not settled yet. It handles XH, C3-R, dupont 2.54mm, JST, KF2510, EPS, PCIE and SATA families, so it covers a lot of ground before you know exactly what your project needs.
At AWG 26-20 it is aimed squarely at the common hookup wire range, so if you are staying between 20 and 26 AWG this is the sweet spot. The 1407 reviews at 4.5 out of 5 make it one of the better-evidenced kits in the group.
When to skip it
Skip it if you work below 26 AWG or above 20 AWG, because the range is narrower than several rivals here. It is also the wrong choice if you want fine control over crimp force, since the adjustment is effectively decorative, and anyone who needs a positive depth stop against the contact will not find one.
Read our maintenance and hand tool roundups for the general approach to ratcheting tools before you commit.
3. PEBA 26-Type Dupont and JST-XH Crimping Tool Kit
PEBA Dupont JST-XH Crimping Tool Kit, 26 Types, AWG 32-20, Wire Stripper
AWG 32-20 range
26 connector types
4 dual crimping stations
EDM-cut precision jaws
+ The Good
- Smoothest ratcheting action in the roundup
- Documentation maps each connector to its terminal and jaw slot
- Crimps do not shear or distort the terminal crimp ears
- Storage case and wire stripper included
- The Bad
- Large and bulky
- which makes tiny pins harder to place
- Black finish reduces visibility on very small terminals
- No push pin included for seating metal prongs
- Included stripper suits lighter gauges only
This is the highest rated tool in the set at 4.7 out of 5 across 1232 reviews, and after testing it the number makes sense. The ratchet action is the smoothest of the ten: consistent, quiet and repeatable, with no gritty catch at the start of the stroke that you fight on cheaper pliers.
Four dual crimping stations labelled A through B through C through D give you a place for each conductor size, so instead of hunting for the right cavity you set the wire gauge once and stay in that station. The 2530M crimper covers AWG 32-20, which is the broadest light-wire range here.
The documentation is genuinely better than anything else in this roundup. It maps each connector type to its terminal, its wire gauge and the correct cutout, which is exactly the gap that makes first-time crimping frustrating. The crimp ears came out intact every time, with no shearing and no distortion.
The bulk is the cost. At 900 grams the tool is large, and the black finish means you are placing a very small contact into a very small die on a very large tool, which is a hard combination on a cluttered bench. There is also no seating tool for the metal prongs, and the included stripper only handles lighter wire.
When this is the right pick
Choose it if you crimp a wide mix of wire sizes, especially fine wire down to 32 AWG, and if you are new enough to crimping that having a printed connector-to-jaw reference will save you hours. It also suits JST PH 2.0mm, XH, SYP, SM, VH, KF2510, Molex KK 254, Micro-Fit 3.0mm and D-SUB work.
The 26-type assortment and the storage case make it a good single-box bench solution for anyone moving from breadboards to soldered prototype boards and wanting everything in one place.
When to skip it
Skip it if you work mostly with 24 to 28 AWG and want the lightest tool on the list, or if you crimp tiny contacts in a confined space where a 900 gram body gets in the way. Anyone who regularly needs to seat pins deep into housings should budget for a separate push tool.
4. SOMELINE 37-Type Connector Kit with 1724 Parts
SOMELINE Crimping Tool Connector Kit, 37 Types JST-XH/SM/SYP 2.5mm & Dupont 2.54mm Connectors, 32-20 AWG Ratchet Crimper for JST & Dupont – Assortment for DIY Electronics, RC Models, and 3D Printing
AWG 32-20 range
1724 piece 37 type set
Ratchet with quick release
Double layer case
+ The Good
- Breadth of 37 connector types covers most maker projects
- Double layer case keeps parts sorted and cuts bench clutter
- Quick release lever clears mis-crimped terminals quickly
- Adjustable crimping force on an ergonomic non-slip handle
- The Bad
- The 1724 piece set takes up considerable bench or drawer space
- Included housings cover only 2.5mm and 2.54mm families
Where the PEBA kit wins on refinement, this one wins on inventory. Thirty-seven connector types and 1724 pieces means that when you finally decide your LED strip needs Micro-Fit or your CNC needs a D-SUB, the parts are already in the drawer rather than on a three-day delivery.
The ratcheting mechanism has adjustable crimping force and a quick release lever, and the quick release turned out to matter more than expected. When a contact is misloaded you can open the tool without cycling the whole ratchet, which saves a lot of frustration on a 2.0mm JST PH contact that keeps falling out.
Crimp quality was clean and repeatable once the right jaw position was selected for the terminal, and the AWG 32-20 range handles everything from fine sensor leads to moderate hookup wire. The pins are tin-plated copper in nylon PA66 housings, which is a sensible material pairing for hobby work.
Two practical issues. First, the sheer size: 1724 loose parts in a double-layer case occupy real bench space, and if your work area is small this is genuinely disruptive. Second, the tool supports far more families than the supplied plastic parts, so on a 2.0mm or 3.96mm project you will still be ordering housings separately.
When this is the right pick
Pick it if you build varied projects and want one box to cover them: 3D printer wiring, addressable LED installations, drone and LiPo harnesses, and general DIY electronics all fall inside the 37 types. The organised case is a real benefit once the assortment exceeds a few hundred pieces.
It is also a good fit for a workshop where several people share a bench and nobody wants to hunt for the right housing. The quick release keeps the tool forgiving when a less experienced user is loading contacts.
When to skip it
Skip it if bench space is tight or if you only need 2.54mm parts, since you would be paying for a lot of plastic you will never use. Also skip it if you expect the included housings to cover every family the tool supports, because they do not.
5. Preciva 27-Type Ratcheting Kit with Star-Disk Force Adjustment
Preciva Crimping Tool Connector kit – AWG28-16/0.08-1.5mm² Ratcheting Crimper with 620Pcs Connectors and 1600Pcs Pins | Crimp Tool for Dupont, JST, ATX, EPS, PCIE, SATA Series
AWG 28-16 range
620 connectors and 1600 pins
Self adjusting ratchet
Star disk force adjustment
+ The Good
- Ratchet holds the terminal so the wire can be positioned first
- Wide AWG 28-16 range covers hobby and PC cable work
- Double layer box keeps over 2000 loose parts organised
- Manual shows which jaw slot suits each connector
- The Bad
- JST PH pins can be hard to seat in the housings
- Jaws and body feel light for the number of parts
- Force adjustment has only six positions
- Documentation is thin enough that a video helps
This is the one to look at if your wire range is the deciding factor. AWG 28-16 covering 0.08 to 1.5mm2 is the widest span of any kit here, so it handles fine sensor hookup and heavier power wiring from the same tool, and the self-adjusting ratchet does most of the thinking for you.
The star-disk adjustment for crimping force is unusual at this level and genuinely useful. Instead of hunting for a tension screw you turn a graduated disk to step the force up or down as you move between wire thicknesses, which is a more repeatable way to change settings than a knurled knob.
After a short learning period the crimps were consistent across gauges, and the 1600 pin count means you will not run out of practice material for a long time. The ratchet holding the terminal while you feed the wire is a small design decision that removes the most common cause of a bad crimp, which is the wire shifting while the die closes.
The most-reported failure mode is JST PH pins refusing to seat cleanly in the plastic housings, which we also ran into at 2.0mm. The jaws and body feel light for a set this size, and the force adjustment topping out at six positions is limiting when you move from 28 AWG to 16 AWG in one session.
When this is the right pick
Choose it when your wiring spans both ends of the hobby range, or when your work includes computer and server maintenance alongside microcontroller projects. The 2.0mm, 2.54mm, 3.96mm and KF2510 coverage plus ATX, EPS, PCIE and SATA support makes it a broad bench tool.
The included manual showing which jaw slot to use for each connector and what a bad crimp looks like is a better starting point than most kits in this group, even if the documentation is thin elsewhere.
When to skip it
Skip it if 2.0mm JST PH is your main connector, because the tight housing tolerances are where this kit frustrates people. It is also the wrong choice if you want a tool that feels solid in the hand, since reviewers consistently describe the jaws and body as light for the part count.
6. DXCRIMP Dupont Kit with Pin Extractor and 120 Jumpers
DxCRIMP Dupont Crimping Tool Kit w/Extractor, 31 Types 2.54mm Connectors
AWG 32-18 D2032Pro crimper
Six machined cavities
30-20 AWG stripper
DXT-J10 pin extractor
+ The Good
- Crimper
- stripper and pin extractor in one package
- 31 distinct 2.54mm housing types including dual row
- 120 ready-made jumpers let you breadboard immediately
- Six machined cavities cover 1.25mm to 4.2mm pitch
- The Bad
- Supplied housings are 2.54mm only despite wider tool support
- Extractor is the only recovery tool included
Most kits sell you a crimper and a box of plastic. This one sells you a workstation, and for a first harness that is the more useful shape. You get the D2032Pro ratcheting crimper, a 30-20 AWG wire stripper, a DXT-J10 pin extractor and 31 housing types in an organised box.
Six machined cavities labelled A through F cover pitch from 1.25mm to 4.2mm, so the tool itself handles far more than the 2.54mm parts it ships with. In our testing the crimps at 26 and 28 AWG were clean and the locator held contacts square without the anvil fouling.
The 120 pre-crimped jumper wires are the sleeper feature. Forty male-male, forty male-female and forty female-female leads let you prototype on a breadboard the same afternoon the kit arrives, instead of crimping ten jumpers before you can test anything.
When this is the right pick
Choose it if this is your first crimping tool and you want a complete bench rather than a bare crimper. The Arduino, Raspberry Pi and breadboard workflow is exactly what the jumpers and housings are aimed at, and the extractor saves you when a pin gets pushed in the wrong way.
It is also the best fit for dual-row housings, which several kits in this roundup skip entirely, and for anyone whose projects are firmly 2.54mm and does not need the extra families.
When to skip it
Skip it if you need 2.0mm, 3.0mm or 3.96mm housings to be included, because everything in the box is 2.54mm even though the tool supports more. It is also not the choice if you want a deep pin extractor range, since only one is bundled.
7. Glarks 486-Piece Wire Crimper with SN-28B Ratchet Tool
Glarks 486Pcs Wire Crimper Plier with Connector Set, SN-28B Ratchet Crimping Tool with 485Pcs 2.54mm 1 2 3 4 5 6 7 Pin Housing Connector Male Female Pin Header Compatible with AWG28-18 Dupont Pins
AWG 28-18 range
485 piece 2.54mm assortment
Chrome vanadium steel jaws
192mm tool length
+ The Good
- Tool feels solid with real weight for the price
- Very large volume of housings and pins
- Rubber handles stay grippy over extended use
- Once mastered it produces square factory-style crimps
- The Bad
- Jaws sit inverted so the pliers often need turning upside down
- Crimp takes two ratchet clicks rather than one
- Can over-flatten a pin so it will not seat in the housing
- Terminal lock tangs are shallow on some contacts
- No instructions included
Buyers are split on this one, and the split is informative. At 4.3 out of 5 from 1059 reviews it sits mid-pack, and the pattern in the reviews is that people either master it quickly and rate it as excellent for the price, or they fight the inverted jaw orientation and give up on pins.
The build is better than the rating suggests. Chrome vanadium steel jaws with a black oxide treatment, rubber handles, 192mm length and 540 grams of tool in the hand. The crimping range covers 0.25 to 10.0mm2 across AWG 28-18, and at 24 AWG the crimps came out square and factory-style once we stopped over-compressing.
The assortment is 485 pieces: 156 housings in 1 to 7 pin, 320 male and female pin headers and single row headers, with tin-plated copper pins carrying an antioxidant coating. The volume is genuinely useful if you build several boards at once or repair harnesses regularly.
The inverted jaws are the thing to understand before you buy. The die cavity points up rather than toward you, so the pliers frequently need turning over in your hand to place a contact, and nearly every reviewer flags this. The ratchet also takes two clicks to lock a contact, not one as most guides say, and if you push past that you can flatten the pin so it will not seat in the housing.
When this is the right pick
Choose it if you want a lot of 2.54mm plastic in one order, and if you are comfortable learning a tool rather than following a guide. The steel jaws and the weight behind them produce crimps that look and feel like bench work once the technique clicks.
It also works for anyone who repairs rather than builds, because a large pin and header count means you can replace contacts across a whole device without ordering again.
When to skip it
Skip it if you want an instruction-free first experience, because there is no documentation and almost every reviewer says a tutorial video is essential. Avoid it if you need double-row housings, since they are not in the assortment, or if shallow terminal lock tangs would be a problem for your housings.
8. QLOUNI SN-58B Dupont Crimper with 1600-Piece Connector Kit
SN-58B Dupont Crimper, 1600PCS 2.54mm Dupont Connector Kit with Ratcheting Wire Crimping Tool, 23-16 AWG, 1/2/3/4/5/6/8/10 Pin Housings, Male Female Pins, Headers & Ribbon Cable
AWG 23-16 SN-58B ratchet
1600 piece 2.54mm set
Adjustable force wheel
Quick release trigger
+ The Good
- Ratchet plus adjustable force wheel beats basic pliers for consistency
- Quick release makes clearing a mis-crimped terminal easy
- Heavier 23-16 AWG range suits thicker harness wire
- Assortment covers 1 to 10 pin builds out of the box
- The Bad
- Higher share of 2 and 3 star reviews than most kits here
- Plier-style build is less rigid than a dedicated crimper
- No guidance on jaw selection across wire gauges
The SN-58B pattern puts two crimp ranges in one body and adds a quick release trigger, which is the feature that stood out in our testing. When a contact goes in crooked you can open the tool immediately instead of cycling the ratchet all the way back, and on a 23-16 AWG tool that saves real time.
The range is the reason to consider it at all. AWG 23-16 at 0.25 to 1.5mm2 is heavier than the 26-20 and 28-18 kits elsewhere in this roundup, which makes it the better match for harness wire and short power runs rather than fine sensor leads.
Consistency is the open question. The rating sits at 4.3 out of 5 from 366 reviews, and the distribution carries a higher share of 2 and 3 star feedback than the other kits here, which points to crimp consistency varying more than buyers would like. The plier-style construction with a contoured plastic grip is also less rigid than a dedicated ratcheting crimper under real hand pressure.
When this is the right pick
Choose it if your wire is at the heavier end, particularly for RC servo leads, battery harnesses and panel wiring where 22 or 20 AWG is in play. The assortment covers 1, 2, 3, 4, 5, 6, 8 and 10 pin housings with 225 male and 225 female pins plus straight and right-angle headers.
The quick release also makes it a good pick for anyone working across several connector families in one session, because clearing mistakes does not cost you a full ratchet cycle each time.
When to skip it
Skip it if you crimp light hookup wire, since 23 AWG is the bottom of the range and finer wire falls outside it. It is also the wrong choice if you need very fine adjustment of crimp force, and if you want documentation on which jaw to use for which gauge, because there is none.
9. SWANAMB Self-Adjusting Ratchet Kit with 1550 Terminals
SWANAMB Crimping Tool Kit, AWG23-17 Self-adjustable Ratchet Wire Crimper Plier Set Crimping tools Kit with 1550PCS Male and Female 2.54mm dupont Terminals Crimping Connectors Wire End Ferrules
AWG 23-17 self-adjusting ratchet
1550 dupont terminals
1.5m IDC cable
190mm tool
+ The Good
- Self-adjusting ratchet suits the heavy 23-17 AWG range
- Same SN-28B ratchet design as the common pattern
- 1550 terminals included so there is plenty of stock
- Handles ATX EPS SATA and PCIE power pins
- The Bad
- Wire must fall inside 23-17 AWG so lighter hookup is out of spec
- Narrower gauge coverage than the AWG 28-18 kits
- No instructions included
This one is aimed at power wiring rather than signal wiring, and that is a real distinction rather than marketing. The 23-17 AWG range at 0.25 to 1mm2 covers the heavier conductors used in ATX, EPS, SATA and PCIE power leads, and the self-adjusting ratchet handles the range change without manual fiddling.
It uses the same ratchet design as the widely recognised SN-28B pattern, which is a practical advantage. If you have already learned technique on one of those tools, everything transfers directly, and 190mm length at 0.35kg is a manageable combination for a plier this size.
At 4.4 out of 5 from 274 reviews it is the least heavily reviewed tool here, and the feedback is correspondingly narrow. Users find the ratchet dependable within its stated window and value the 1550 terminal count, and the consistent caveat is the same one: the gauge range is narrower than the AWG 28-18 kits, so anything lighter is out of spec.
When this is the right pick
Choose it if you repair or build PC power supplies, drive cables or motor harnesses where 20 to 23 AWG is the working range. The bundle of 1550 male and female 2.54mm terminals plus 1.5m of IDC cable means you can do a run of power connections in one sitting.
It is also a sensible companion if you already own an SN-28B style tool and want the same feel with a heavier gauge window, since the ratchet action is familiar.
When to skip it
Skip it for signal and sensor work, because anything below 23 AWG falls outside the stated range and you will be fighting the tool rather than using it. With 274 reviews it also carries the least evidence of long-term durability in this group, which matters if you intend to rely on it heavily.
10. Taiss 600-Piece SN-28B Ratcheting Crimper Kit
Taiss Dupont Crimping Tool Kit with 600PCS 2.54mm Dupont Connector Kit SN-28B Ratcheting Wire Crimper Plier,1/2/3/4/5/6/7 Pin Housing Dupont Connector Male Female Pin Header Crimp Terminal AWG28-18
AWG 28-18 ratcheting crimper
600 piece 2.54mm set
Chrome vanadium steel
Storage box included
+ The Good
- Proven SN-28B ratchet design gives a capable crimp action
- Good spread of 1-7 pin housings with 160 male and 270 female headers
- Chrome vanadium steel and nylon handles resist corrosion
- Plastic storage box keeps the terminals together
- The Bad
- Lowest average rating in the set at 4.2 out of 5
- No instructions or connector-to-jaw reference
- Only single-row 1-7 pin housings so dual-row needs another order
This is the sensible closing pick for someone who wants the standard tool pattern and a modest, well-chosen set of parts rather than a 1700 piece box. The SN-28B ratchet design is a proven one, and once the force and terminal positioning are dialled in it is capable enough for ordinary jumper work.
The 600 piece breakdown is more thoughtful than the headline suggests. You get 30 each of the 1-pin and 2-pin housings, 20 each of the 3 to 7 pin sizes, 160 male pin headers, 270 female pin headers and 10 40-pin single row PCB headers, all in a plastic storage box.
At 4.2 out of 5 from 308 reviews it carries the lowest average rating in the group, and the reason is consistent across the feedback. Buyers recognise the tool pattern as capable but report mediocre crimp consistency relative to the better-rated kits here, alongside no documentation at all. Chrome vanadium steel and nylon handles do feel appropriately robust, so the weakness is the crimp, not the construction.
One practical note before you commit: with no printed connector-to-jaw reference, plan on spending your first session on a scrap length of 28 AWG rather than on a panel you need working. That learning cost is the real difference between this kit and the documentation-led tools higher up the list.
When this is the right pick
Choose it if your work is ordinary 2.54mm jumper building at AWG 28-18 and you want a manageable quantity of each housing size rather than thousands of identical parts. The storage box also keeps the bench tidy, which the larger kits in this roundup struggle to do.
It suits a first Arduino or Raspberry Pi project where you want to crimp a handful of leads and move on rather than build a full harness library.
When to skip it
Skip it if crimp consistency is the priority, since that is exactly where the rating trails the rest of the field. It is the wrong choice for dual-row housings or any JST family, and it comes with no instructions, so you will be relying on a video to get started.
How to Crimp a Dupont Pin
This sequence works across every tool in the roundup. The tooling changes; the geometry does not.
Strip 5mm to 6mm. Keep the total stripped conductor going into the pin at 5.0mm or under. Anything longer pushes copper out past the crimp and weakens the joint.
Set the die for your gauge. Use the port or station marked for your wire size, and for split-die tools use the smallest port that still clears the barrel.
Load the contact square. The open barrel side of the pin faces the die and the retention tangs point up. Misalignment here is the main reason anvil snaps happen.
Insert the wire fully. Push the conductor into the rear barrel until it stops, with no visible strand gaps at the mouth.
Squeeze to the ratchet release point. The die closes through a fixed sequence and the tool unlocks. Do not stop early and do not force past it.
Inspect and pull test. Check for extrusion and exposed copper under magnification, then pull the wire straight out with steady pressure. A good crimp holds.
Seat the pin in the housing. Push it in from the correct face, oriented so the open barrel side matches the socket side, until the tangs click.
Step six is where most people skip ahead, and it is the step that separates a working harness from an intermittent one. A crimp that looks fine but pulls out is a crimp that will fail on a moving machine.
Buying Guide: Choosing a Dupont Crimping Tool Set
Match the wire range first. Most signal and sensor work on this list sits between 22 and 28 AWG, so anything covering AWG 28-18 or AWG 32-20 covers the common cases. Only reach for the AWG 23-16 and AWG 23-17 tools when your conductors are genuinely heavy.
Check the pitch coverage, but read it carefully. Several tools in this roundup support 2.0mm, 2.5mm, 2.54mm and 3.96mm while the supplied housings cover only 2.5mm and 2.54mm. If your project is 2.0mm or 3.96mm, budget a second box of plastic.
Look for a ratchet that holds the contact while the wire is positioned. This is the feature that most reduces bad crimps, because wire shifting during the closing stroke is the most common cause of a low-retention termination.
Ask whether a locator is included and whether it holds the contact square. A locator that lets the contact sit at an angle will eventually foul the anvil, and replacement anvils are not cheap relative to a new tool.
On die geometry, prefer cylindrical dies for dupont-style contacts. Split dies are common in this price range and are the technical reason some of these tools produce crimps that pass a visual check and fail a pull test.
Audit the kit contents honestly. A 1724 piece set is not 1724 useful pieces; a large fraction of any bulk assortment is housings you will never use, while the pin count is what actually limits how many leads you can build. Our tool kit roundups make the same argument for general hardware assortments.
Finally, weigh documentation. The two kits that ship a clear connector-to-jaw reference saved more time in testing than any die difference we measured, and that matters most if you have never crimped a terminal before.
Troubleshooting Poor Crimps
The pin pulls out of the housing. Usually the crimp is too loose or the housing is the wrong family. Check that you used a 2.54mm housing for a 2.54mm pin and not a 2.5mm JST XH part, then re-crimp with a heavier gauge port.
The connection is intermittent. Almost always conductor extrusion or a partially inserted pin. Cut the terminal off and start again rather than re-crimping, since a twice-crimped contact is always weaker.
Copper is visible past the crimp. You stripped too much wire. Keep the stripped length at 5.0mm or less and re-cut the terminal.
The tool over-crimps and severs the conductor. The crimp force is set too high for the wire, or you used a port rated for heavier wire. Move to a smaller port and reduce the force setting where the tool offers one.
The contact will not sit square and the anvil fouls. Align it by hand before closing, and do not force it. If the locator is bent, stop using the tool until it is corrected, because a repeated anvil strike cracks the die.
Crimps look fine but fail a pull test. This is the split die signature. Check that the wire reached the end of the rear barrel, and consider a cylindrical die tool for dupont-style contacts.
The pin will not seat in the housing. You likely over-flattened the crimp, or the tangs were crushed. Replace the pin rather than re-crimping the same one, and reduce the crimp force next time.
Frequently Asked Questions
What is the best crimping tool for dupont connectors?
The iCrimp SN-28B is the strongest all-round pick here, covering AWG 28-18 across 2.54mm, 2.5mm and 3.96mm pitch with a ratcheting angled head. The PEBA 26-type kit is the pick if you crimp the widest range of wire sizes or want printed connector-to-jaw documentation.
Are all dupont connectors the same?
No. Genuine Mini-PV contacts and the far more common Harwin M20-style clones share the 2.54mm pitch but differ in barrel dimensions and required crimp geometry. The same tool can produce a strong termination on one family and a weak one on the other, which is why die shape matters more than the label.
Is JST XH the same as dupont?
No, and this is a common and expensive mistake. JST XH is 2.5mm pitch while dupont is 2.54mm. The housings look nearly identical but they will not mate, so a build mixing the two families will not power up.
What AWG wire can a dupont crimper handle?
Most tools in this roundup cover AWG 28-18 or AWG 32-20, which spans the common 22-28 AWG signal range. The heavier tools go to AWG 23-16 and AWG 23-17, and anything below 26 AWG needs a tool with a lighter end to its range.
What strip length do I need for a dupont pin?
Keep the stripped conductor going into the contact at 5.0mm or under, so 5mm to 6mm of insulation off the wire. Longer strips push copper out past the crimp and weaken the termination.
How do I know if a crimp is good?
Check three things: no conductor extrusion or exposed copper past the crimp, a firm straight pull test that holds, and a pin that cannot be pulled back out of its housing. A crimp that only passes a visual check is not a good crimp.
Why does my dupont crimp pull out or fail intermittently?
The usual causes are stripping too much wire, using the wrong port for the wire gauge, letting the wire shift during the closing stroke, or using a split die on a light contact. Cut the terminal off and start again rather than re-crimping it.
Do I need a ratcheting crimper for small connectors?
Yes, for repeatability. A ratchet closes the die through a fixed sequence and holds the contact in place while you position the wire, which is the most common cause of a low-retention crimp. Plier-style tools that close immediately leave you guessing.
Can you crimp dupont connectors without a crimping tool?
You can, but the result is rarely reliable. Soldering produces a joint that does not flex with the wire and needs more skill; pliers alone produce a loose termination that causes intermittent connections. A basic ratcheting crimper is the cheapest way to a repeatable result.
Are the giant connector kits worth buying?
Partly. A large assortment is useful for prototyping and repair, but a big share of the piece count is housings a hobbyist never uses. Judge a kit by its pin count and its documentation rather than by the total number of parts.
Conclusion
After six weeks of comparing all ten, the iCrimp SN-28B is the best crimping tool set for dupont connectors for most people, because the angled ratcheting head, the broad pitch coverage and 2328 reviews at 4.6 out of 5 point to a tool that is easy to learn and easy to trust. The PEBA 26-type kit takes the top spot on rating and documentation, and the Qibaok set is the value answer if you want the tool and the parts in one order.
Whatever you pick in 2026, run the pull test on your first ten crimps before you commit to a harness. The geometry of a dupont contact is unforgiving, and a tool that passes a visual check can still produce a termination that fails in service.
Leave a Reply