| 摘要 |
A compact and light-weight portable electric router (1, fig. 1) produced at a low cost and capable of providing high cutting efficiency with low noise. A radial fan 20 includes a cylindrical hub 21 functioning as an attachment portion to a motor shaft, a plurality of fan blades 22 having parts connecting to the hub 21, and a ring like guide section 23 connected to the hub 21 through the fan blades 22. A preventing section 24 is disposed between the annular guide section 23 and the inner peripheral surface of the housing 12 for restricting backflow of air from the discharge side to the motor side. |
