While you wait for answers, we may have found some information which could help you.
Click here for Trigger Hammer Drill
12v black decker a9275 replacement charger and battery?
how can I fix my black & decker kr600cre drill?
how to get a drill bit out of a keyless chuck?
How to change a Twist chuck on a B & D 4300 drill?
electric drill stuck chuck?
how do i remove a bit from stuck keyed chuck?