Swage tool is useless - XS Sight Systems Magazine +2 Extension and Detent Swage Tool

I ordered this back in June. I just received it at the end of August. I waited all this time just because I thought the tool was gonna be useful. I tried it twice. All it did was kept opening up the whole mag tube. I still had to grind the detente off like they do on YouTube. I would say don’t waste your time and just buy an extension and plan on grinding it out with a Dremel. After I did that for the third try taking it all apart everything worked fine and it’s cycled fine. Without dremelling the detents make the follower get stuck.