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 Crimp Connector for AWG28-18 Dupont Pins

The media could not be loaded. This is a great low-cost option for making your own connectors. The crimp tool is not ultra-high quality but it works perfectly and it's very easy to use as I show in the video.Definitely, worth the 5-star rating, and when I use these up, I'll definitely get another kit ... keep the extra crimper as a backup.

Lots of parts for cable repair.

I'm a complete newbie to this kind of crimping (I've done coax and rj45 and ordinary auto-wiring-harness types of connectors some; oh, and DB25 and DB9 cable connectors back in the day). Luckily, there are lots of good instructional videos ("dupont connector" and "sn-28b" are useful search terms). If you are also new to this, watch a couple from different people, and allocate half a dozen connectors and a couple of terminal blocks to practice *before* you try to do real work. So far as I can tell from YouTube, and from my experience learning myself, these crimpers are excellent, but the process requires considerable skill to use effectively, and you'll just have to budget the time to learn. I mean, an hour, and I was starting to make real work, if a bit slowly, just practicing on my own. But that was starting with the assumption I needed to learn so no time wasted on failures before I started studying systematically.I don't mean this in any way as a criticism of this tool; that advice applies to *any* crimper of this sort. I usually learn better from text, but this kind of physical manipulation skill it helps me to see it actually happening.These are lever-action ratcheting crimpers; there's even an adjustment on that, which I haven't quite figured out yet. The crimping dies are more complicated than I expected, with two sides of different dimensions, one for the part of the pins that grabs the insulation and one for the part of the pins that grabs the actual conductor. Learn which side is which right away, and how to find (by feel) when the pin is in the right place. Then learn how to tell when the wire has slid in far enough. You need surprisingly little stripped wire -- really honestly 1mm is good.

let me preface this with saying that these are a godsend. I have the 25$ Klein electric crimpers, which look a lot like these, and they don't work the same. these make those perfect square pin crimps you see on any auto factory wire connector (if you've ever seen the inside). that said, i do feel like the jaws are upside-down, and they should have been swapped, because the only reason I took one star off "easy to use" (but still left the overall rating at 5 stars) is that I'm constantly having to turn the pliers upside down to get the crimp I want. now, it may be me doing something wrong a but I've been working in car electronics for a while, and have used MANY different crimpers. these work for straight ahead, flat crimps just fine with no twisting needed. for the pin connector crimps, the gauge of wire thats used in most vehicle applications, and again this is just my experience, is sized such that the bottom of the connector murt be facing up when performing the first crimp (I always flip it and give it a second crimp to make them look perfect) or you'll wind up with a crushed pin connector. but, once you learn that one thing, these are perfect. they ratchet, and the release is like any other ratcheting crimper, so you can't have pressure pushing back on the tool and expect it to release-- you either have to release it while still squeezing a tiny bit, or go through the entire crimp so it resets the jaws. overall though they make beautiful crimps that legit look factory made and hold up stronger than the actual wire they're attached to. Just as good as soldering, imo.

I play around with Arduino boards a lot and I've often wished I had just the right wires with just the right connectors to make hooking things up easier. These 2.54mm DuPont style connectors are very popular for these connections.I've used many crimpers in the past on a variety of different styles of pins/connectors so I'm not a novice at it. I know that DuPont style connectors are a nightmare to deal with but I thought the crimper tool would work well with the pins. Turns out this crimper is d4mn finicky to use and half the crimps are total junk where the pins won't slide into the housings. After fiddling with this POS for a few hours, I gave up and ordered a Iwiss IWS-2820M crimper instead since it will give me more control over the crimping process.The pins, sockets, and connector housings seem to be OK though.

Great tool and connectors. For the money it can’t be beat!

Great quality, pins are sturdy, ratchet action on crimper makes for good compression of pin to wire

I've crimped probably over a thousand terminals using almost every kind of crimper there is including those for spark plug wires. A good quality crimper will not require you to rework the crimped terminal. Nor require soldering the wire into the terminal. Nor require some delicate operation to get a good crimp. Nor require an extensive training period. Nor require crimping the terminal more than once. You simply put the terminal in the crimper, insert the wire and crimp. Alternatively you can put the wire in the terminal and then insert it into the crimper and crimp. Results should be the same, a properly crimped terminal that will easily insert into the connector.I used up a couple dozen terminals trying to get even a usable crimped terminal but no luck. The crimper I received does not crimp properly on either the bare wire nor on the insulated portion. It does not squeeze the terminal wings enough and does not fold the terminal wings over properly. I bought this crimper for a specific project using Dupont 2.54 mm terminals and it does not work.The webpage says it will crimp 28-18, not true as it will not even crimp 24ga wires properly.Returning it to Amazon.