Step 1
Slide the power switch on the drill to the center position to avoid accidentally turning on the drill while removing the bit.
Step 2
Hold the body of the drill firmly while twisting the collar of the chuck in a counterclockwise direction. Turn the collar a few additional turns once it is loosened.
Step 3
Pull the drill bit straight out of the chuck.
If the collar of the chuck will not turn, place the body of the drill in a bench vise. Place a rag around the drill to protect it from scratches or damage. Tighten the vise just enough to hold the drill in place. Do not over-tighten the vice, or you could crack the drill case. Use both hands to twist the collar on the chuck in a counterclockwise direction.
Accord to Sears, you should not tighten a drill bit into the drill by holding the chuck with one hand and turning the drill on to tighten the jaws in the chuck around the drill bit. Your hand could slip off the chuck and come in contact with the drill bit, possibly causing injury.
Do not use any type of tool to loosen or tighten the drill chuck, or the collar could be damaged.