I just traded for some snuffer screw in heads, and I got home decided I would heat them up, and just take the insert out, and glue them to my wood shafts.
Sounded simple till I heated them up, and with 2 pliers I couldn't get the inserts out. So I decide I'm going to just heat them some more, and I'm glad I didn't have the screw in end pointed at anyone, because it came flying out of there like a bullet, and a loud POP went along with it. I was startled at the first, but being a guy, I had to try it again, and the same thing happened. So I had 4 more trys, and man it was getting fun, then they were all done, and glued onto the shafts.
I did learn something tonight though. You should always wear safety glasses when doing any type of tinkering/figuring out. You just never know when something is going to blow.