A tool for retracting pistons into cylinder bores is disclosed, with a narrow gap between facing pressure plates allowing use of the tool in tight places, and ratcheting spreading of the facing pressure plates causing outward moving of the pistons, enabling work to be performed, wherein movement of a threaded stud through a coupler moves a first pressure plate.

A ratchet wrench includes a box, a button, a switch and an engagement element. The box includes an upper opening, a channel, a switch chamber in communication with the upper opening via the channel, and a button aperture in communication with the switch chamber. The button is inserted in the switch chamber via the button aperture. The button includes an abutment portion to keep the button in the box. The switch includes an arched portion extending in the switch chamber around the button. The switch is operable to rotate the button by the abutment portion without hindering movement of the button into and from the button aperture of the box. The engagement element is inserted in the channel of the box. The abutment portion is operable to move the engagement element in the channel to extend a front edge from the upper opening of the box.

A tool for locking/unlocking a torsional vibration damper screw to/from a crank shaft of an engine includes an elongated tool body having a first end and a second end. The first end of the tool body includes a pair of engagement pins sized and spaced for engaging a pair of apertures in the torsional vibration damper. The second end of the tool body includes an aperture for receiving a fastener for engaging the second end to a mounting location on the engine. A spacer element can be utilized for mounting the second end of the tool body to the engine mounting location.

Disclosed is a panel removing tool having a bend portion that is located behind a fulcrum of the tool. During use, the tool pivots about the bend portion applies leverage to remove a panel. The bend portion includes a cover (for example a dipped polymer) that is made of a material softer than a material of the remainder of the tool (for example, stainless steel). The tool therefore prevents scratching or other damage to panels in which the tool is used and allows greater leverage during use due to the recessed bend portion.

A tool for retracting pistons into cylinder bores is disclosed, with a narrow gap between facing pressure plates allowing use of the tool in tight places, and ratcheting spreading of the facing pressure plates causing outward moving of the pistons, enabling work to be performed, wherein movement of a threaded stud through a coupler moves a first pressure plate.

A system and method for a lug nut cap cover removal tool that allows the user to quickly remove one or more lug nut caps in quick succession, the lug nut cap cover removal tool connected to a drill whereby when placed inside of a socket, the socket and removal tool spin in unison to remove the lug nut caps.

The present disclosure relates to a quick tire self-centering clamp, including a clamp body assembly, a gear and rack transmission mechanism and a locking mechanism, where the clamp body assembly includes a seat body and three guide rails, each of the guide rails is provided with a sliding seat, and a gripping jaw for holding a tire tightly is fixed on the sliding seat; the gear and rack transmission mechanism includes three racks, one end of each of the racks is fixedly connected to the sliding seat and is parallel to the guide rail in opposite directions, a central shaft sleeve is mounted in the seat body, a gear is fixed on the central shaft sleeve; the locking mechanism includes a ratchet, a positioning pin rod and a positioning pin telescopic component. the gear and rack transmission mechanism can increase the adjustment stroke of the clamp.

In order for hydraulic disk brakes to function properly over time, associated brake pads are changed periodically. In order to exchange old brake pads for replacement brake pads, a disk brake may require pushing back the brake pistons within a brake caliper body in order to make room for installation of replacement pads. Current tools and methods typically require removal of a wheel from a vehicle, removal of a brake rotor from the wheel, and/or removal of the brake caliper body from a rotor. The presently disclosed caliper piston tool allows brake pads to be replaced without dismantling various components of the vehicle, resulting in significant time and cost savings as well as convenience for do-it-yourself and professional mechanics alike.

The dolly arm release tool is a tool that safely releases the dolly arm on a set of trailers allowing the operator to have three points of contact throughout the entirety of movement. As described above, the dolly arm release tool streamlines two useful applications into one tool and allows the operator the ability to carry only one piece of equipment to accomplish multiple tasks.

A tool includes an operative rod, a guiding rod, a conveying screw and two detaching elements. The guiding rod includes a middle section connected to the operative rod and two terminal sections extending from the middle section. The conveying screw includes two threaded sections. Threads of the threaded sections extend in opposite directions. Each of the detaching elements includes a fixing aperture and a screw hole. The fixing aperture receives a corresponding one of the terminal sections of the guiding rod. The screw hole receives a corresponding one of the threaded sections of the conveying screw. Thus, the detaching elements are moved toward each other when the conveying screw is rotated in a first direction and that the detaching elements are moved from each other when the conveying screw is rotated in a second direction.