Abstract: A pliers switchable for use with external snap-rings and internal snap-rings is disclosed. A jaw assembly with easily changeable tips is provided, and to be more convenient for the end-user, a spring loaded tip release mechanism and jaw assembly is provided.

Abstract: A tool for retracting pistons into cylinder bores is disclosed. A plurality of centering cones are provided to engage with a multitude of piston sizes and configurations. A user selects an appropriately sized centering cone and engages the selected centering cone with a spring loaded distal pusher portion of said tool. A female threaded collar and spreader plate combination receives a male threaded thrust bolt. The male threaded thrust bolt carries the spring loaded distal pusher portion. The spreader plate is pressed against a face of the caliper assembly, and rotation of the male threaded thrust bolt by a driver, such as a ratchet wrench or impact gun, applies inward and rotating forces from the spring loaded distal pusher portion of said tool to the piston, while separating the spring loaded distal pusher portion of said tool from the spreader plate.

Abstract: 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.

Abstract: A ratcheting brake bleeder wrench is provided which sealingly couples to a bleed valve. The brake bleeder wrench has an internal fluid passageway which allows egress of fluid from a hydraulic brake system. The ratcheting brake bleeder wrench is used to open the bleed valve, allowing egress of fluid, remains in place during the bleeding operation, and reverses direction upon completion of bleeding to tighten the bleed valve back into sealing relationship with the hydraulic brake system.

Abstract: 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.

Abstract: 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. One of the pressure plates is reversible to change the minimum narrow gap from a first width to a second width. In each of the orientations, the plates are movable towards and away from one another.

Abstract: A ratcheting brake bleeder wrench is provided which sealingly couples to a bleed valve. The brake bleeder wrench has an internal fluid passageway which allows egress of fluid from a hydraulic brake system. The ratcheting brake bleeder wrench is used to open the bleed valve, allowing egress of fluid, remains in place during the bleeding operation, and reverses direction upon completion of bleeding to tighten the bleed valve back into sealing relationship with the hydraulic brake system.

Abstract: A pliers switchable for use with external snap-rings and internal snap-rings. The pliers has a first member with V-shape track, a second member with an aperture, and a switch mechanism. The second member and the switch mechanism are translatable along the V-shape track, and the switch mechanism is configured to engage and disengage the first and second members in and out of a “locked” position.

Abstract: A pressure measuring device/system that is capable of measuring the pressures of multiple systems in an automobile, including cylinder pressure, fuel pressure, transmission oil pressure, and engine oil pressure, and is capable of displaying and/or recording the measured pressure values remote from the device taking the measured remote pressures. The pressure measuring system has a remote interface and a sensor configured to communicate wirelessly with each other. The interface may be configured to he included within the device purpose built for displaying and interacting with the pressure values measured by the sensor. Additionally or alternatively, the interface may he configured to he downloaded as a mobile application “app” on a smartphone or other similar device.

Abstract: A pinch-off pliers possessing a canted orientation along the length. The pinch-off pliers has a first clamping unit, a second clamping unit, and an axial mechanism. The pinch-off pliers positioned along a first axis and a second axis, where the first axis is not parallel to the second axis. An intersection of the first axis and the second axis along the length of the pinch-off pliers creates a canting angle theta in the pinch-off pliers at the intersection. An intersection of a first plane and a third plane creates a second canting angle omega when having the pinch-off pliers positioned along the first axis and an intersecting fourth axis.