Patent ID: 8415922

Claim:
A power tool, comprising: a tool main body having a motor configured to rotate in a first direction and a second direction; a battery pack which supplies electric power to the motor; detection means which detects a battery voltage of the battery pack; protection means which stops supply of the electric power to the motor from the battery pack when the motor is rotating in the first direction and the battery voltage detected by the detection means is a predetermined value or less; determining means which determines whether an instruction from a user is to rotate the motor in the first direction or the second direction after the stop of the supply of the electric power to the motor by the protection means; and permission means which maintains the stop of the supply of the electric power to the motor when it is determined that the instruction from the user is to rotate the motor in the first direction and permits the supply of the electric power again to the motor when it is determined that the instruction from the user is to rotate the motor in the second direction.