Originally Posted by perfect_oil
After I remove the screw down in the center of the drill chuck, I'll put the short end of a large Allen key into the chuck and tighten it down. Now with the long end of the Allen key sticking out of the chuck, I'll strike the Allen key sharply with a hard mallet. Drill chuck now spins off.
Tighten the Chuck, that's the trick.
Originally Posted by P10crew
Tighten an Allen socket in the chuck then simply bump the socket with an impact gun
Even better, Allen socket, I have a short straight hex bar I'll use, and I have an impact gun.