| 摘要 |
PROBLEM TO BE SOLVED: To provide a power tool capable of reducing motor sound without affecting motor performance and cost.SOLUTION: A power tool 10 storing a brushless motor 20 inside a housing 11 is provided. The brushless motor 20 has a stator 23 including plural teeth 23a projecting in an internal radial direction at an equal interval.On an outer peripheral part corresponding to positions of the teeth 23a of the stator 23, a notch 23b for adjustment so that natural frequency of the stator 23 does not overlap 12th component and 16th component of rotation frequency of the brushless motor 20 is provided. |
