Grip the drill. Locate the red locking switch on the back of the battery. Hold the switch down.
While holding down the red locking switch, slide the battery towards the back of the drill until the battery is fully removed from the drill.
Grip cordless drill firmly with left hand. Grip the cordless drill handle firmly with the right hand. Rotate the handle counterclockwise in order to remove the handle from the drill.
The chuck sleeve is held on by a 20mm Phillips #2 screw in the center.This screw is reverse threaded. Insert a Phillips #2 screwdriver and rotate it clockwise to loosen and remove it.
The threaded hole the screw was in is in the shape of a 6-point star. Insert a T40 Torx Key and rotate it clockwise to loosen and remove the chuck sleeve.