5Colors 4mm Banana Plug Solder DIY Male Connectors Adapters for Multimeter Test Leads Electrical Testing-10Pack

These have a great fit and finish and make an excellent connection. The pin can swivel in the jacket, which is a nice touch. The only drawback is that they are a little difficult to assemble until you figure out all the tricks (which I gleaned from a couple other reviews here).Slide the jacket over the wire first. Strip the wire just enough that the exposed conductor is the same length as the "solder cup" in the plug. Tin it. Tin the "solder cup" in the plug. Be patient, it takes a LOT of heat to get the solder to bond to the pin. Feed the wire in and solder the exposed conductor to the pin, filling the solder cup with solder. Again, be patient as this takes a lot of heat. I was using silicone jacketed wire, so I wasn't too worried about how hot the wire got. Once soldered, you will find it seemingly impossible to slide the jacket over the pin. The trick is to heat the jacket a little bit with a heat gun. Just a few seconds with a crafting heat gun on the lower setting was all it took for me. Don't pull the wires to seat the pin in the jacket. Although the solder connection is very strong, you don't want to tug on the wire hard enough to snap the pin into the jacket. Instead, holding the jacket, press the tip of the pin against something that gives a little, like wood. It should give a satisfying snap. If it still refuses to go in, try heating the jacket a little more.Once assembled, these are great.

Perfect to make 4mm cords...techs always need that one setup that involves patching together multiple leads...get these make that setup and never a reason to use multiple leads for testing.

As in the title, I think they work very well. They seem sturdy and durable, certainly much better than the flimsy cheaper connectors found everywhere. I was able to solder them without any issue. However, the plastic sheath sometimes is exceptionally hard to slide in, I had to use pliers and a lot of force in multiple attempts.

Excellent quality! These will far outlast the cheap meters I am using them on!

The banana plugs themselves are properly sized and fit well in everything I tried them in, but the sheaths don't fit over the banana plugs. Had to ream them out just slightly or the plugs wouldn't slide all the way in to the proper place, leaving the solder point exposed.

Great quality, but very difficult to remove the insulating handle that needs to be removed to connect your lead wire to the plug body

Believe it or not, there is NOT clearance to allow the metal plug insert to fit all the way into the nylon sheath! I have seen other reviews recommending modifying the sheath with heat but that can also easily melt and deform the sheath material (in ways you don't want!).There are other reasons not to buy these! 1) The OD's of the banana portion of the plugs vary and result in overly tight or loose connections when inserted into female sockets, and 2) the insulating sheath material is so hard (no give at all) that the strain relief is rendered useless.NOT worth the trouble and aggravation!!

Happy with the product. It handled the soldering heat well.

Three stars? A bad product? Not at all. They work fine and if you are not pulling them out and inserting them into different components all the time, they will be just fine. But they are just a light weight plastic. I don't think they were ever intended for heavy use. Like in a studio setting. But my applications are not like that. I will make a project and then not worry about any kind of dis-assembly. My will stay connected. And for that kind of use, these are fine.Bottom line is that they work. They fit well into my connectors. If you are careful with them, they should be fine. Just remember, they are not heavy duty. They are light weight connectors. I think the old adage, "You get what you pay for" applies here.Paid for with my own money. Thanks!

Excelente Productor