A flex joint headed tool with a locking mechanism adapted to selectively retain the angle of the head relative to a handle. The locking mechanism may retain the head in at least one of two positions using a bias member and two detent balls disposed at opposite ends of the bias member. The bias member and detent balls may be disposed in a through hole disposed in a locking lever, with one detent ball engaging a joint tang and the other detent ball engaging a detent disposed in a tool body or handle, wherein the detent balls provide tactile response to a user. The locking lever may rotate between locked and unlocked positions, whereby in the locked position, the ratchet head is prevented from rotating relative to the handle, and when in the unlocked position, the head may rotate relative to the handle.

A socket wrench includes a wrench body, a ratchet wheel and a positioning ring. The ratchet wheel has a driving hole and a cylindrical flange extending on one side of the wrench body. The cylindrical flange has at least one aperture defined through the outer periphery thereof and communicating with the driving hole. The positioning ring is an O-shaped ring and surrounded the outer periphery of the cylindrical flange, and has a central bore. At least one protrusion radially protruded from the inner wall of the central bore of the positioning ring. The protrusion is projected from the wall of the driving hole through the aperture to position a socket. The positioning ring is moved a distance along the radial direction relative to the ratchet wheel by being pushed toward the at least one protrusion to completely retract the at least one protrusion into the aperture to release the socket.

A tool fitting attachment for a surgical drill can include a drive-side coupling for mounting on a drive unit which provides a torque via a motor, and an output-side coupling for receiving a tool. A drive unit is integrated between the two couplings and can be manually operated. A surgical drill can include an electric motor which is connected via the drive-side coupling of the tool fitting attachment.

A wrench has a socket and a driving structure, and the socket accepts the driving structure. The driving structure has a first end and a second end and a slidable cover. The slidable cover has a main body adjacent to and outside of the socket for limiting movement of the main body between a locking position and an open position on the wrench. When the main body is in the locking position, the main body covers the first end of the driving structure, a threaded member passes through the second end of the driving structure into the socket and is stopped by the main body without exceeding the socket of the wrench; and when the main body is in the open position, the main body exits the first end of the driving structure, the threaded member passes through the first end of the driving structure and exceeds the socket of the wrench.

A ratchet screwdriver includes a ratchet wheel; a pawl base assembly, for inserting into the ratchet wheel, and a plurality of pawl pieces for engaging with teeth, the rear end of the pawl base assembly connecting to a handle of a screwdriver while the front end connecting to a head of the screwdriver; a rings assembly adjustably mounted on the ratchet wheel; the pawl base assembly includes a center rod and a pedestal, the rear part of the center rod is provided with a first positioning slot, the center rod passes through the center hole of the pedestal, the center rod is clamped at the first positioning slot by a first clamping member. Compared with the prior art, the overall structure is more rational and practical, and is safer and more reliable in use, and is capable of loosening or tighten a screw quickly.

A wrench includes a handle and a driving head and a ratchet ring with a receiving hole is received in the driving head. An adapter is detachably inserted into the receiving hole and has a neck, an engaging portion and a reception hole. The neck on first end of the engaging portion has a first groove. A second groove is defined in the second end of the engaging portion. Multiple holes are defined through the bottom of the second groove and communicate with the reception hole. 33 A clip is engaged with the second groove and partially protrudes beyond the holes and exposed in the reception. A securing unit is connected to the driving head to secure or release the adapter. The receiving hole is connected with larger bits or sockets, and the adapter is connected with smaller bits or sockets.

A driver tool has a grip handle. The grip handle has a grip handle height less than a grip handle width. A first axis base is mounted to the grip handle. The first axis base includes a first saddle flange and a second saddle flange. A pair of primary link pins are mounted to the first saddle flange and the second saddle flange defining a first axis of rotation. A coupler link is mounted on the first axis of rotation to rotate on the first axis of rotation relative to the first axis base. A pair of secondary link pins mounted to the coupler link. The pair of secondary link pins define a second axis of rotation that is perpendicular to the first axis of rotation. A driving link is mounted to the second axis of rotation. The driving link includes a driving socket.

A locking structure for a hand tool contains: a body including a driving head. The driving head has an accommodation cavity and a notch, and the accommodation cavity has a trench and an indentation. A fixer is accommodated in the indentation and has a limiting groove, a cutout, a post, and a recess. A second actuation member is housed in the limiting groove and has a locking portion, a locating portion, a protrusion, a control portion, a first aperture, and a second aperture. A release button is accommodated in the notch and has a tough for housing a retaining element. Furthermore, a first stop ring is located under the second actuation member and is configured to separate the second actuation member from the first actuation member, a ratchet rotation block is fixed under the first stop ring, and a second stop ring is mounted under the ratchet rotation block.

A system for displaying augmented reality content includes an intelligent tool and a wearable-computing device. The intelligent tool is configured to obtain at least one measurement of an object using at least one sensor mounted to the intelligent tool, and communicate the at least one measurement to a device in communication with the intelligent tool. The intelligent tool may further include a camera, and the at least one measurement includes an image acquired with the at least one camera. The intelligent tool may also include a biometric module configured to obtain a biometric measurement from a user of the intelligent tool. One or more modules of the intelligent tool may be powered based on the biometric measurement. The wearable-computing device includes a display affixed to the wearable-computing device, such that augmented reality content based on the obtained at least one measurement is displayed on the display.

An intelligent tool is configured to communicate with a wearable computing device to provide information that the wearable computing device uses to generate and/or display augmented reality content to a user of the wearable computing device. The intelligent tool includes a handle for a user to grip an intelligent tool, an engagement portion coupled to the handle, the engagement portion being configured to engage with an object, at least one sensor mounted to the engagement portion, the sensor configured to obtain information associated with the object, and one or more hardware processors in communication with the at least one sensor configured to store the obtained information. The intelligent tool may also include a power source configured to provide electrical power to the at least one sensor and the one or more hardware processors. The intelligent tool may also include a light source that emits a light to illuminate an object.