Review on Efficient Aluminum Blind Rivet, 0.125 Length: Premium Quality Fastening Solution by Scott Ramu

I had about 9 out of 10 mandrels break where the rivet gun grabbed them about an inch above the top of the rivet. I ended up pulling the mandrels out of all of them before using them and notching them in the right place with a wire stripper. After that, 9 out of 10 broke in the right place and with the right effort. I've used many other rivets before and after and they all break in the right place so I don't think it's my riveting tool to blame. I used the .751-.875 3/16" size.