WayinTopConnector 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)

"Welcome to my TED talk..." Making Dupont cables is an art of sorts. So any kit would be challenging to use for the first time. Watch some videos first. Practice till you get it. If you get it right, terminals should *easily* fit in the shells and click into place. I found these crimper may not completely form the end of the crimp ( see photos ) resulting in the terminals being hard / impossible to insert into shells. If you have this issue, try to adjust the crimper via a screw on the side, or after you crimp gently squeeze the insulation portion of the crimp with pliers to make it narrower. Either way, I can get near perfect cables from this kit. Just spend the time to practice. Note also, there is a wide and a narrow side to the crimper jaws, the "teeth" on the terminal rests on that ridge, as shown. This is also something many videos fail to mention. Once you figure it out you'll be "OMG, this is SO simple!"

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.

I teach electronics/robotics and bought this kit recently at the request of a student. The tool is good quality and the kit had a good variety. The tool has stood up to a few months of use by teenagers with no sign of wear so I'd say it will last the average user forever.

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.

Buyer beware:The ribbon cable that this came with is too small to use with with everything else in this kit.Apart from that the kit is great, it come with almost everything one could need with this kind of gear. The Dupont connector crimper is really finnicky to use but that's due to the product's maker; the Dupont crimper you get in this kit works very well.