An anti-rolling socket includes a socket body, a groove, a through hole, and a stopper. The socket body has an inner peripheral surface and an outer peripheral surface. The groove is disposed in, and along the circumference of, the inner peripheral surface. The through hole is disposed between the inner peripheral surface and the outer peripheral surface and communicates with the groove. The stopper includes a stop ring and a stop section. The stop ring is fitted in the groove. The stop section is connected to the stop ring. The stop section projects from the through hole and protrudes from the outer peripheral surface. The stop section can abut against a flat surface to prevent the socket body from rolling on the flat surface.

An anti-rolling socket includes a socket body, a groove, a through hole, and a stopper. The socket body has an inner peripheral surface and an outer peripheral surface. The groove is disposed in, and along the circumference of, the inner peripheral surface. The through hole is disposed between the inner peripheral surface and the outer peripheral surface and communicates with the groove. The stopper includes a stop ring and a stop section. The stop ring is fitted in the groove. The stop section is connected to the stop ring. The stop section projects from the through hole and protrudes from the outer peripheral surface. The stop section can abut against a flat surface to prevent the socket body from rolling on the flat surface.

The multi-function tool described herein includes a case, a drive ratchet installed in the case, a threading die held within the case, a file attached to the case such that a working surface of the file is exposed, a wrench tool removably secured to the case by a wrench retaining feature formed in the case, socket tools removably secured to the case by socket retaining features formed in the case, and a bar extension tool removably secured to the case by a bar extension retaining feature formed in the case. The ratchet has a fitting exposed at the top of the case, and a toggle switch exposed at the bottom of the case. The bar extension tool is compatible with the socket tools, the fitting of the ratchet is compatible with the socket tools, and the fitting of the ratchet is compatible with the bar extension tool.

The multi-function tool described herein includes a case, a drive ratchet installed in the case, a threading die held within the case, a file attached to the case such that a working surface of the file is exposed, a wrench tool removably secured to the case by a wrench retaining feature formed in the case, socket tools removably secured to the case by socket retaining features formed in the case, and a bar extension tool removably secured to the case by a bar extension retaining feature formed in the case. The ratchet has a fitting exposed at the top of the case, and a toggle switch exposed at the bottom of the case. The bar extension tool is compatible with the socket tools, the fitting of the ratchet is compatible with the socket tools, and the fitting of the ratchet is compatible with the bar extension tool.

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.

A socket for use in tightening or loosening a fastener is provided. The socket includes an outer wall defining a first recess at a first end and a second recess at an opposing second end. The first recess is configured to engage a nut or a head of a fastener for rotation. The second recess is configured to receive a drive member of a socket wrench. The outer wall has an outer surface. A plurality of spaced-apart rotational markings is positioned on the outer surface of the outer wall. The plurality of spaced-apart rotational markings is configured to provide a determination of the angle of rotation of the nut or the head of the fastener.

A socket for use in tightening or loosening a fastener is provided. The socket includes an outer wall defining a first recess at a first end and a second recess at an opposing second end. The first recess is configured to engage a nut or a head of a fastener for rotation. The second recess is configured to receive a drive member of a socket wrench. The outer wall has an outer surface. A plurality of spaced-apart rotational markings is positioned on the outer surface of the outer wall. The plurality of spaced-apart rotational markings is configured to provide a determination of the angle of rotation of the nut or the head of the fastener.

A tool includes a reversable first socket having a pair of opposed first socket ends and a first engagement portion therebetween, and a reversable second socket having a pair of second opposed socket ends and a second engagement portion therebetween. The tool includes an elongated first adapter having a driven end, a first drive end opposite the driven end, and an extending length therebetween. The tool includes an elongated second adapter having a receiving end opposite a second drive end. The receiving end includes a first interior portion, a second interior portion connected to the first interior portion, and a third interior portion connected to the second interior portion. In a first configuration, the first drive end is engaged to the first engagement portion. In a second configuration, the second drive end is engaged to the second engagement portion. In a third configuration, the second drive end is engaged to the second engagement portion, and the first drive end is engaged with the third interior portion.

The housed socket extension has a high strength tubular housing with a socket extension apparatus which fits within the housing and protrudes from the ends of the housing. Two bearing retaining devices are mounted on the socket extension apparatus, adjacent to the ends of said housing. The first end of the socket extension receives a ratchet wrench or power tool, and the second end of the socket extension apparatus is designed to mate with a socket or tool bit.

The housed socket extension has a high strength tubular housing with a socket extension apparatus which fits within the housing and protrudes from the ends of the housing. Two bearing retaining devices are mounted on the socket extension apparatus, adjacent to the ends of said housing. The first end of the socket extension receives a ratchet wrench or power tool, and the second end of the socket extension apparatus is designed to mate with a socket or tool bit.