Battery-driven screwdriver with interchangeable bits, used for tightening and loosening screws and bolts.
End of the blade or bit that fits into the groove of the screw or bolt.
Switch for selecting the bit’s direction of rotation (screwing or unscrewing).
Detachable shank rotated by the motor to screw or unscrew a part.
Device that stores chemical energy while charging, then converts it to electric energy.