A calibration monitoring system is provided to automatically monitor the calibration status of tools and other inventory items, such as upon the items being issued from or returned to the automated calibration monitoring system. The system identifies an inventory item, for example a calibrated torque wrench or other calibrated tool identified based on a unique identifying tag attached thereto. The system retrieves a calibration parameter value for the item from a calibration database, and completes a calibration measurement of the item based on the calibration parameter value. In the example, a torque measurement of the calibrated torque wrench can thus be automatically completed. In turn, the system determines a current calibration status of the item based on the calibration measurement, and selectively enables or disables issuance of the inventory item from the system according to the item's status as being in calibration or out of calibration.

A calibration monitoring system is provided to automatically monitor the calibration status of tools and other inventory items, such as upon the items being issued from or returned to the automated calibration monitoring system. The system identifies an inventory item, for example a calibrated torque wrench or other calibrated tool identified based on a unique identifying tag attached thereto. The system retrieves a calibration parameter value for the item from a calibration database, and completes a calibration measurement of the item based on the calibration parameter value. In the example, a torque measurement of the calibrated torque wrench can thus be automatically completed. In turn, the system determines a current calibration status of the item based on the calibration measurement, and selectively enables or disables issuance of the inventory item from the system according to the item's status as being in calibration or out of calibration.

A ratchet wrench with a positioning structure includes a drive bar, a rotary head, and a locking button. The drive bar includes a fork arm, a fork opening formed at the fork arm, an axial hole communicating with the fork opening, and a radial hole communicating with the axial hole. The rotary head is pivotally connected to two ends of the fork arm. The rotary head includes a round housing, a plurality of positioning recesses disposed on the round housing, and a pivot axis located at the rotary head and passing through two ends of the fork arm. The pivot axis is parallel to the radial hole. The locking button includes a locking rod disposed in the radial hole and a latch bar disposed in the axial hole. The locking rod is transversely movable in association with movement of the latch bar.

A fastener removal apparatus is configured for removing a nut from a threaded shank and includes a gearbox assembly, an outer socket, and a tubular sleeve member. The gearbox assembly has an input member, a first output member, a second output member, and a plurality of gears. The first output member and the second output member rotation in opposite directions about a longitudinal axis in response to rotation imparted to the input member. The outer socket extends between a first end defining a female polygonal opening and a second end engaged for concurrent rotation with the first output member. The tubular sleeve member extends between a first end defining a threaded opening for receiving threads defined by the threaded shank and a second end engaged for concurrent rotation with the second output member.

A ratchet wrench having a flexible positioning structure includes a drive bar, a rotary head, and a locking button. The drive bar includes a fork arm, an axial hole, and a radial hole communicating with the axial hole. The rotary head is pivotally connected to the fork arm; the rotary head includes a round housing, a plurality of positioning recesses disposed on the round housing, and a pivot axis passing through the rotary head and two ends of the fork arm. The pivot axis is perpendicular to the radial hole. The locking button includes a flexible fastener inserted through the radial hole and a latch bar disposed in the axial hole. The flexible fastener is flexibly movable in association with movement of the latch bar, so that the latch bar is engaged with or released from any of the positioning recesses.

A ratchet wrench having a quick release structure includes a drive bar, a rotary head, and a locking switch. The drive bar includes a fork arm, a fork opening formed at the fork arm, an axial hole communicating with the fork opening, and a radial hole communicating with the axial hole. The rotary head is pivotally connected to two ends of the fork arm. The rotary head includes a round housing, a plurality of positioning recesses disposed on the round housing, and a pivot axis passing through the rotary head. The pivot axis is perpendicular to the radial hole. The locking switch includes a turning element disposed in the radial hole and a latch element disposed in the axial hole. The turning element rotatably drives the latch element to move axially, and the latch element is engaged with or released from any positioning recess.

A ratchet wrench having a positioning mechanism includes a drive bar, a rotary head, and a locking button. The drive bar includes a fork arm, an axial hole communicating with the fork opening, and a radial hole communicating with the axial hole. The rotary head is pivotally connected to two ends of the fork arm; the rotary head includes a round housing, a plurality of positioning recesses disposed on the round housing, and a pivot axis passing through rotary head. The pivot axis is perpendicular to the radial hole. The locking button includes a locking rod disposed in the radial hole and a latch bar disposed in the axial hole. The locking rod is radially movable in association with movement of the latch bar, and the latch bar is engaged with or disengaged from any of the positioning recesses.

A tubing connector wrench having a rotating hub held by two independent pawls. An open end of the hub and casing of the wrench allows it to engage over a piece of tubing and thereafter be engaged on a tubing connector. The wrench may be employed to turn tubing connectors without removing it for repositioning. The two pawls insure that the hub remains engaged for one way turning of the connector.

A tubing connector wrench having a rotating hub held by two independent pawls. An open end of the hub and casing of the wrench allows it to engage over a piece of tubing and thereafter be engaged on a tubing connector. The wrench may be employed to turn tubing connectors without removing it for repositioning. The two pawls insure that the hub remains engaged for one way turning of the connector.

The assembly solves a frequent problem when aligning one machine to another machine. Typically, the machine to be aligned has very little clearance in the hold-down bolt holes, and running out of adjustment space while aligning is common. This assembly uses cams in enlarged holes in the machine feet. The cams not only allow the machine to be aligned with holes already drilled into a fixed bedplate, but after the machine is set on the bedplate, also allows the machine to be moved more than twice as much as is now permitted. This allows it to be easily aligned with another piece of equipment that is already fixed in place. The assembly also makes dowelling unnecessary, because the cams are locked into place with a set screw to prevent the machine from moving.