I needed to tap into a very thin, very short, hard to reach wire. There was no way I could get enough wire exposed to use a butt connector or crimp cap, much less get a large crimp tool in there. This was perfect, I cut the wire and created a bridge with my own wiring. I was able to slide this down the wire and get it to hold into place while I crimped it with a small needle nose plier. The teeth do a great job of puncturing the insulation and holding it in place. I ran a lot of tests prior to my install. Even when I gave it a weak to moderate crimp, I still got connectivity. Only when I did a really weak crimp, did it not work, but that was being purposely mediocre with my attempt. Bottom line: if you're in need of something for thin, hard to reach wiring, this is it.
Rating: [5 of 5 Stars!]