iCrimp SN-28B Dupont Crimping Tool for 3.96mm, 2.54mm, 2.5mm Pitch Dupont, JST XH VH Connectors, AWG 18 to 28

This Crimping Tool is an excellent tool for precise and consistent crimps. It’s easy to use, even for beginners, and produces clean, professional-quality connections every time. The ratcheting mechanism works smoothly, and the jaws are well-aligned for Dupont-style terminals. It feels solid and comfortable in hand, making longer projects much easier. Fantastic value for the quality

The iCrimp Crimping Tool has become an essential tool in my arsenal for working on servo wires for RC planes. It's a game-changer that ensures a reliable and secure connection, and here's why. The precision and ease of use of this crimping tool are simply outstanding. It's designed to work with Dupont-style connectors commonly used in the RC hobby. The ratcheting mechanism guarantees a consistent and firm crimp every time, eliminating the frustrations of loose connections. I particularly appreciate the tool's ability to handle a range of wire gauges, making it versatile for various RC projects. The ergonomic handles provide a comfortable grip, even during extended use. Overall, the iCrimp Crimping Tool has made working on servo wires a breeze. It ensures that my connections are not only secure but also professional-looking. If you're into RC planes or other electronics projects, this tool is a must-have for achieving reliable and precise crimps with ease. It's a small investment that makes a significant difference in your projects' success and overall enjoyment.

I bought mine in 2021 and only used it a couple of times so I did not get enough experience until today when I started making wires in earnest. Mine does not form the O crimp properly, that being the one at the insulation end of the connector. I am using 24ga silicone insulated wire which is very flexible, tinned and all around excellent. But this insulation is squishy and while the O crimp I think is intended to go around the insulation I cannot do that or the insulation squishes out and prevents the connector from sliding into its shield. In fact it’s not an O crimp at all, it’s just a bigger B crimp. On mine that bigger B is malformed, I think because of a defect on the hammer jaw. (One jaw moves which I call the hammer and the other remains stationary which I call the anvil. The anvil forms the curves of both the O and B crimp except as I say they’re really both B’s). The defect is in the casting and looks like it forms both an inclusion and a drop out which is to say one bit of it makes the channel smaller and the other bigger but these are by very small amounts. I think the malformation distorts the way the material flows in the die because one half of the O-which-is-really-just-a-bigger-B is malformed and the other isn’t. The top loop is squashed so the connector will not slide into the shield and requires fussing with pliers to get the shape right. The only way I can get a usable crimp is by using the 28-24ga jaws, setting the connector depth as recommended, crimping it and then pushing the connector in farther so the O crimp is in the B hammer/anvil and crimping it again. This is done with insulation stripped far enough that it’s bare wire through both the O and B areas (about 5mm). The resulting crimps are consistent, very strong and insert easily. I have only used these on one vendors connectors (gikfun) which I got at the same time as this crimper and they’re excellent but they state in the listing they’re for 22ga wire (and I’m using 24ga). Mine had the same behavior with 22ga silicone wire, I just didn’t go far enough in testing to find out if the same double-crimp solves it.

My only regret is not buying this sooner. I've been a lifelong builder and hacker; R/C cars, planes, helicopters, arduino robots, raspberry pi arcade cabinets, etc. I'm really good with needle nose pliers because that's all I've used for decades. I can (usually) get just the right diagonal grip to do complex crimps and work my around a connector to pinch the wings around wire and insulation alike. Yea, the end result wasn't always the prettiest but it (usually) worked even though it took a while. THEN I found this crimping tool. This tool has changed my life. The crimping is so much faster now. This tool is very intuitive and well designed. You can see in the pictures there are three crimping channels for various sized connectors and wire gauges. What you might not see are the two 'zones' within each channel: There's a tighter zone for the wire-crimping wings and a slightly wider zone for the wings that crimp a wire's insulation. This allows the user to slide a connector into the channel, 'hook' the wider wings in just the right spot, then ratchet down 2-3 clicks to hold the connector in place without crimping yet. Then the user can slide the wire into the connector until bumping the insulation against the tighter zone for exact alignment. Finally, squeeze down the remaining ratchets and a perfect crimp is made. Looks like it came straight from a factory. The process is straightforward to execute and achieves the same results every time. The tool feels solid, sturdy and well made.

This crimping pliers is excellent for a number of different connector ends

Muy buena herramienta Cumple sus especificaciones técnicas Buenos engastes en terminales y calibres pequeños Fue buena compra y buen precio

A bit costly but the product is good.

Excellent Quality

Tested and works great, just pay attention on wire AWG.

Good quality crimping pliers, but the included instructions are pretty lacking. There are no mentions about the +/- adjustment that appears on the pliers, nor how to properly adjust them outside of "Crimping tool may need adjusting" appearing in the troubleshooting section and the features stating that they're readjustable.