To provide a power tool enabling a worker to recognize power supply voltage or information discriminated from the power supply voltage by detecting the power supply voltage, and improved in workability and safety.

The power tool transmits rotating force of a motor 2 driven through a power supply circuit 3 to a tip end tool 5, and carries out required work by the tip end tool 5. In the power tool, a voltmeter 6 is connected to the power supply circuit 3, and an indicating portion 7 indicating output from the voltmeter 6 is provided at a position that is visible from the worker.