While you wait for answers, we may have found some information which could help you.
Click here for Drill Battery Charger12v black decker a9275 replacement charger and battery?
how to get a drill bit out of a keyless chuck?
how do I remove the chuck head ?
carbon brushes replacement Black & decker BD163V?
how can I fix my black & decker kr600cre drill?
how do i remove a bit from stuck keyed chuck?