Abstract: A sleeve assembly and an electric tool are provided. The sleeve assembly includes a sleeve defining a receiving cavity recessed backward from a first end face of the sleeve. The nut is received in the receiving cavity. The sleeve assembly also includes a pull rod assembly arranged in the receiving cavity. The pull rod assembly includes a pull rod extending along a central axis of the sleeve, a pulling component arranged at one end of the pull rod, and a bearing arranged at another end of the pull rod opposite to the pulling component. The pull rod is connected to an inner wall of the sleeve through the bearing, and the pull rod is rotatable relative to the sleeve. In response to the sleeve assembly screwing the nut, the pulling component is configured to drive the bolt to be attached to a surface of the to-be-fixed component.