Jeremy: I had the same problem with my Dewalt. It uses a standard 3/8 inch
thread so I replaced it with a conventional chuck. It was a disaster. I
now


My Dewalt keyless chuck is about shot too. Is there a small left hand bolt
down in the bottom of the chuck to remove before you unscrew the chuck? (My
other drills have this) On my Dewalt, I don't see how I'd hold the drill
from turning to break the chuck loose - how'd you do that? I'm sure its on
TIGHT.

Karl