Power impact tool

A power impact tool comprising:

• a motor,
• a tool bit driven by the motor, the tool bit having at least a driven mode to perform a predetermined operation on a workpiece by a striking movement in an axial direction of the tool bit,
• a trigger manually operated by a user of the power impact tool to control energization and non-energization of current to drive the motor, wherein the motor is energized when the user operates the trigger to turn on and the energized state of the motor is maintained until the trigger is again operated in a same manner with the turning-on operation,
• wherein the trigger has a operating position and an initial position, wherein the trigger is biased from the operating position toward the initial position and is normally held in the initial position, the trigger being operated by a user of the power impact tool between the initial position and the operating position to control energization and non-energization of current to the motor,
• the power impact tool further comprising a mode changing member manually switched by the user between a first mode in which the tool bit performs a striking movement and a second mode in which the tool bit performs a rotating movement around the axis of the tool bit in addition to or instead of the striking movement wherein,
• when the mode changing member is located in the first mode position, the motor is energized by depressing the trigger from the initial position to the operating position and the energized state of the motor is maintained until the trigger is operated again after the trigger is released and returned again to the initial position and
• when the mode changing member is located in the second mode position, the motor is energized by depressing the trigger from the initial position to the operating position and the energization of the motor is disabled when the trigger is released and returned to the initial position.