Control mechanism for rotary hand tool

摘要

A control mechanism for a rotary hand tool of the type having a generally cylindrical housing in which a drive motor is located, the housing having a nose portion from which a motor output shaft extends and a grip portion the mechanism including an electrical control circuit that controls the application of power to and the operation of the motor, and a light touch switch having at least a first position or state and a second position or state coupled to the electrical control circuit for, selectively enabling or disabling the control circuit to turn the motor on and off. The switch is disposed on the nose portion of the rotary hand tool such that an operator can actuate the switch substantially without altering the operator's grip on the tool.