Good morning, I also use a strap wrench to keep from damaging the chuck. I milled flats to hold the stationary ring of the chuck with a vice-grip. I also noted that when using a drill bit and bottoming it in the chuck the release works with no problem at least 9 out of ten times on heavy cuts. Hole saw arbors do not bottom out in the chuck and wonder if the jaws may tip at the top or cock locking the chuck.Ridgid 31350 Strap Wrench