Patent ID: 7322427

Claim:
A power impact tool, comprising: a tool body, a motor housed within the tool body, a tool bit being driven by said motor, a first switch and a second switch electrically connected to said motor, both switches are configured to be actuated between an on-position and an off-position with respect to said motor, said motor being driven only when both switches are in the on-position, wherein the first switch is biased to remain in the off-position and the second switch is biased to remain in either the on or off-position unless actuated to the opposite position, and a mode changing mechanism that switches between hammer operation modes of the tool bit, said mode changing being operationally connected to both switches, wherein according to a first hammer mode the first switch is actuated to the on-position to operate the motor while the second switch is locked in the on-position, and according to a second hammer mode the first switch is locked in the on-position while the second switch is actuated between the off and on-position to operate the motor.