Connector Crimping Tool Kit Crimper Plier 2.54mm Header Male Female Crimp Pins Terminals Housing 1 2 3 4 5 6 8 10 Pin and 40pin 1.27mm Ribbon Cable FC/IDC Jumper Wire 1M (Crimping Set)

Crimpers seem to be good quality. I did have to take pliers and round the crimped connector on the wire to get it to fit in the connector, but that may have been due to the small wire I was putting the connectors on. Use this to replace wire connectors on my 3d printer stepper motor cables.

I needed to make some cables while working from home, so I purchased this kit.For the price, it’s pretty complete. It has enough male and female pins to make a whole lot of cables, so for the cost, you’re getting a pretty good deal compared to what I’ve gotten before at brick and mortar stores around here - if you’re lucky enough to have one nearby that sells these kinds of things.However, there is a problem with this that adds a great deal of extra time to the cable assembly process.I needed to make cables with my own wire, so I haven’t use the included ribbon cable yet.After cutting and stripping the wires, I used the included tool to crimp the pins on. The tool is very easy to use, and it crimps the pins on very cleanly and securely. However, even when using the smallest crimping slot, the pins are too large to fit into the holes of the included connectors. The crimping tool is flat on the bottom side of the guide holes, so it makes a crimp that is squared on the bottom side of the crimped pins. The tabs that grip the wires and insulation are curved, so the wires are connected securely, but the flat, squared bottoms are just a little wider than the connector holes. To make them fit, I needed to gently squeeze every pin with a pair of pliers to make them slightly narrower so they would fit.Once each pin was squished a little, they were able to slide into the connectors and lock in place. The finished product is secure and holds together nicely, but the additional time it takes to manually adjust each pin after crimping it adds a lot of work to assemble it.If the crimping tool had its slot made either a bit narrower or if the bottom slot were slightly rounded, it would be perfect and deserve 5 stars, but the way it is now, it requires too much additional work. If you squeeze the pins too much, you will ruin it. I had a stereo microscope that I used to get them just right, but without this to see what I was doing with high magnification, I would have had to re-crimp many of them.

Great value for what you pay. I only needed to make one connector, but unfortunately, this is pretty much the only way to buy Duponts. Either way, I'm glad I have a million more pieces for future projects.

I would have given 5 stars except it lacked no information on proper use. This type of tool is difficult to learn. A bit fussy. Hints on just how to use it along with a video would go a long way to simplify new users and old alike. The last time I used such a tool was in the 1970s.I found inserting the male 2.54 mm pins very difficult. I know there is an insertion tool to aid in this process. A link to such a tool would help. Same for the extraction tool. Add it to the kit would be even better.

Seems to be the wrong crimp tool for the type of connector.

Actually a really good crimper, I didn't expect a kit to have quality tools, but this starter kit is great.

Selection of DuPont connector bodies and pins is nice. However, the tool fails to produce secure crimps when used with the ribbon cable provided in the kit. The gauge of the ribbon cable wire is too fine; the wire easily pulled out of every crimp I made. The only way I could get those cribs to work is if I pre-tinned each wire before crimping. In general, I think the crimper quality is pretty good, but you will need to figure out which crimper dye to use for your wireand use wire of a gauge heavier than that of the ribbon cable s hipped. I am confident there are combinations of wire and crimper die that will produce very good crimps. But I needed to make connectors using the ribbon cable, and it simply did not work out of the box. 5-star if not for that.

The crimper tends to flatten the end of the pins that get crimped, even if I adjust it, so I wouldn’t recommend this if you have lots of pins to crimp. But if you don’t mind straightening some out, it works fine and is a great price.