A fast rotation structure of wrench and wrench thereof are provided. The fast rotation structure includes a seat and a rocker arm. The seat is connected with the ratchet head of the wrench. The rocker arm and the seat are integrally formed or slidably combined. The rocker arm protrudes from one side of the seat, so as to drive the seat to rotate from an outer side of the seat. Therefore, the ratchet head is able to efficiently rotate.

An angled adapter for coupling a tool bit to a tool includes a housing and a transmission assembly positioned in the housing. The transmission assembly is configured to convert an input torque about a first axis from the tool to an output torque about a second axis acting on the tool bit. The second axis is disposed at an angle relative to the first axis. The angled adapter also includes a shank supported by the housing and including a tool coupling portion configured to couple to the tool. The tool coupling portion has an outer dimension. The shank also includes a transmission coupling portion coupled to the transmission assembly, and an intermediate portion extending between the tool coupling portion and the transmission coupling portion. The intermediate portion has a diameter that is less than the outer dimension.

A handheld guide for advancing and installing a decking fastener with an elongate track with a rail and an advancement member. The advancement member carries a pivoting pawl with an engagement surface for advancing fasteners forward through the track to an installation position with a frontmost fastener aligned with a screw guide for driving a screw through the frontmost fastener. The rail has a ramp transitioning to a cliff and a lower ledge such that the frontmost fastener is maintained forward of the cliff above the ledge in the installation position. The pawl pivots to disengage from the fasteners when the advancement member moves rearwardly along the track.

A handheld guide for advancing and installing a decking fastener with an elongate track with a rail and an advancement member. The advancement member carries a pivoting pawl with an engagement surface for advancing fasteners forward through the track to an installation position with a frontmost fastener aligned with a screw guide for driving a screw through the frontmost fastener. The rail has a ramp transitioning to a cliff and a lower ledge such that the frontmost fastener is maintained forward of the cliff above the ledge in the installation position. The pawl pivots to disengage from the fasteners when the advancement member moves rearwardly along the track.

A torque wrench is disclosed for use in rotating a range of different sized fasteners. The torque wrench may include an input end configured to receive a torsional input, and a gear train operatively driven to rotate by the torsional input. The torque wrench may further include a driver connected to the gear train at an output end and having an axial end surface with a plurality of arcuate slots formed in the axial end surface, and a plurality of clamps each pinned to a corresponding one of the plurality of arcuate slots and moveable by rotation of the driver to radially engage a range of different sized fasteners. The torque wrench may additionally include a housing configured to enclose the gear train, the driver, and the plurality of clamps.

Devices, systems, and methods are provided for driving an implant and applying counter torque. For example, a driver can include a handle, a driver shaft, and a counter torque shaft, the counter torque shaft being laterally offset from the driver shaft. A distal end of each shaft can mate with a specific type of implant and/or anatomy. The shafts can be removed and replaced from the device, allowing a user to select shafts having particular lengths and/or mating tips. In use, distal ends of the shafts can be fixed or constrained relative to one another and to an implant such that the counter torque shaft cannot orbit around the driver shaft. Rotating the handle can rotate the driver shaft, driving the implant. This can cause the counter torque shaft to try to orbit around the driver shaft, but the fixed/constrained ends restrict this motion, applying the counter torque.

Devices, systems, and methods are provided for driving an implant and applying counter torque. For example, a driver can include a handle, a driver shaft, and a counter torque shaft, the counter torque shaft being laterally offset from the driver shaft. A distal end of each shaft can mate with a specific type of implant and/or anatomy. The shafts can be removed and replaced from the device, allowing a user to select shafts having particular lengths and/or mating tips. In use, distal ends of the shafts can be fixed or constrained relative to one another and to an implant such that the counter torque shaft cannot orbit around the driver shaft. Rotating the handle can rotate the driver shaft, driving the implant. This can cause the counter torque shaft to try to orbit around the driver shaft, but the fixed/constrained ends restrict this motion, applying the counter torque.

A press type automatic screwdriver includes a press member, a drive link, a screwdriver bit, and a screw thread pair including a screw rack and a gear engaged with the screw rack. The press member and the screwdriver bit are secured to opposite ends of the drive link, the press member and the drive link are connected by the screw thread pair, and the screw rack is resisted by the press member. The gear is secured on an end of the drive link. When the press member is pressed, the press member pushes the screw rack, the screw rack drives the gear to rotate, the gear drives the drive link to rotate, and the drive link drives the screwdriver bit to rotate.

A press type automatic screwdriver includes a press member, a drive link, a screwdriver bit, and a screw thread pair including a screw rack and a gear engaged with the screw rack. The press member and the screwdriver bit are secured to opposite ends of the drive link, the press member and the drive link are connected by the screw thread pair, and the screw rack is resisted by the press member. The gear is secured on an end of the drive link. When the press member is pressed, the press member pushes the screw rack, the screw rack drives the gear to rotate, the gear drives the drive link to rotate, and the drive link drives the screwdriver bit to rotate.

A crimp tool includes a frame, a lead screw and a nut assembly connected to the lead screw. A spring member is connected to the frame and movable with rotation of the lead screw. A first transducer is connected to the nut assembly to measure a first force applied on the nut assembly. A second transducer is connected to the spring member to measure a second force applied thereon by the spring member.