Patent ID: 8820433

Claim:
A power tool comprising: a housing defining a handle; a trigger switch mounted to the housing; an output spindle; and a motor and transmission assembly removably coupled to the housing and configured to drive the output spindle, the motor and transmission assembly comprising a first mount, a second mount, a motor, and a transmission, the first mount being removably coupled to the housing and having a first aperture and a second aperture, the second mount being removably coupled to the housing, and the motor being operated by the trigger switch and having a stator and a rotor, the stator being fixedly mounted to the first mount, the rotor having a rotor spindle being received through the first aperture, the transmission being mounted to the first mount and having a transmission input member, which is drivingly coupled to the rotor spindle, an intermediate spindle, which is received through the second aperture and supported by the second mount on a side of the intermediate spindle opposite the first mount, and a transmission output member that is drivingly coupled to the output spindle such that the output spindle extends forwardly from the transmission output member; wherein a rotational axis of the rotor is disposed parallel to but offset from a rotational axis of the output spindle and wherein the stator and the output member are disposed forwardly of the transmission input member; and wherein when the rotational axis of the output spindle is positioned in a horizontal orientation such that the rotational axis of the output spindle is vertically above the rotational axis of the rotor, the trigger switch is located vertically below the rotor.