Power toll including inertia responsive element

A power tool comprising:

• a housing including a base for supporting said tool on the workpiece, said base being selectively connectable to a workpiece so that, when said base is connected to the workpiece, said housing is substantially stationary relative to the workpiece;
• an output element supported by said housing;
• a motor adapted to be connected to a power source such that said motor, when operated, connects said output element to the power source to impart rotational movement to said output element;
• and
• an inertia responsive element operable to disconnect said output element from the power source if movement of said housing relative to the workpiece is greater than a predetermined threshold.

An electric power tool comprising:

• a housing including a base for supporting said tool on a workpiece, said base being selectively connectable to the workpiece so that, when said base is connected to the workpiece, said housing is substantially stationary relative to the workpiece;
• an output element supported by said housing;
• an electric motor adapted to be connected to an electrical power source such that said motor, when energized, connects said output element to the electrical power source to impart rotational movement on said output element, said motor including a winding and a rotor connected in series and adapted to be connected in series to the electrical power source, said rotor selectively coupled to said output element;
• and
• an inertia responsive element for disconnecting said output element from the electrical power source if movement of said housing relative to the workpiece is greater than a predetermined threshold, said inertia responsive element disconnecting said output element from the electrical power source by a one of either disconnecting said winding and said rotor from the electrical power source or disconnecting said output element from said rotor.