| 摘要 |
PROBLEM TO BE SOLVED: To provide an electric power tool which inhibits intrusion of foreign objects, such as dust, while increasing ventilator windows of cooling air and improving the discharge efficiency when a motor is downsized.SOLUTION: An impact driver 1 includes a division wall 21 which protrudes from an inner peripheral surface of a motor housing 21 to the radial inner side and divides the interior of a housing into a motor chamber MC for housing a motor 4 and a fan chamber FC for housing a fan 5. The division wall introduces outer air suctioned from a suction hole 21a to the fan 5. A part of the division wall is provided at a position overlapping with a fan side portion of the motor in a rotation shaft direction. An exhaust hole 21c forms a bending shape in a thickness direction of the motor housing 21. |
