| 摘要 |
PROBLEM TO BE SOLVED: To provide a power tool that can reduce the size of a housing owing to a reduced number of part items and is easy to hold and use owing to an improved weight balance. SOLUTION: The power tool has the housing l for housing a motor 2 and a fan 3 attached to the motor 2, and a gearbox 5 housing gears for transmitting rotation of the motor. An electronic control circuit 10 for rotational frequency control on the motor 2 is disposed in a substantial center-of-gravity position of the power tool between the motor 2 and the gearbox 5. |
