I have a pro-craft flex shaft with a hand piece that uses a chuck
key. I bought a foredom quick release hand piece a couple of years
ago and I’ve never been able to use it… Apparently it can only
work in a foredom flex shaft. It seems to push the main spring up
into the motor. Does anyone know what I could do to make it work or
should I just break down and buy a new flex shaft and have two?
God Bless you