Previously when I needed to do this I'd just hit the JY and buy the entire thing, but now that I have several I want to do them myself.
so I watched this video
https://www.youtube.com/watch?v=bTcMD5_EznI
on changing these bosch brushes

but it won't come off no matter how long I leave my soldering iron on it.
Seems that ring is holding it but I don't know what that is, though it's possible my low end weller soldering iron isn't getting hot enough to melt it. I left it on for about a half hour the 2nd time I tried to do this.
should I just figure out how to grind them both down and drill them?






