Abstract: A surface treatment tool includes a housing, a drive assembly, a transmission system, and a working accessory. The drive assembly is disposed in the housing and includes an electric motor. The transmission system includes an input shaft and an output shaft. The working accessory is connected to the output shaft. A first plane P1 is defined, the point of intersection between the first plane P1 and the input axis is a first point of intersection C1, the point of intersection between the first plane P1 and the output axis is a second point of intersection C2, the line connecting C1 and C2 is a transmission centerline, the included angle between the projection line of the motor axis onto the first plane P1 and the transmission centerline is a first included angle ? that is greater than or equal to 90 degrees and less than or equal to 170 degrees.

Abstract: An electrical outlet cover assembly can include a plate configured to be connected to an electrical outlet, the plate including at least one outlet aperture configured to receive an electrical socket of the electrical outlet, a pair of rectangular hook apertures disposed through a lower end of the plate, and a pair of square clasp apertures disposed through an upper end of the plate, and a box configured to connect to the plate and cover the electrical outlet, the box including a pair of rigid hooks disposed at a lower end of the box, the pair of hooks being received by the pair of hook apertures, and a pair of spring clasps disposed at an upper end of the box, the pair of clasps being received by the pair of clasp apertures.