A power tool comprises a housing defining a grip portion, a motor having a motor drive shaft, a drive assembly including a crankshaft configured to receive torque from the motor drive shaft, an output assembly having an output member configured to receive torque from the crankshaft, a bearing rotatably supporting the crankshaft, a retainer configured to prevent translation of the bearing along the crankshaft past the retainer, and a transducer assembly disposed between the grip portion and the output member to measure the amount of torque applied through the output member.

A tool for rotating an object includes an assembly comprising an inner ring and an outer ring wherein each of the rings include multiple components which can be moved relative to one another between a first condition which accommodates the positioning of the assembly about the object to be rotated and a second condition at which the multiple components of each of the rings form the annular shape of the inner or outer ring to which the multiple components correspond. When the rings are arranged in the second condition, the inner ring is capable of rotating relative to and within a radial plane of the outer ring. In addition, a gear arrangement is connected to the assembly for transferring rotational forces applied from a power tool to the inner ring so that rotation of the inner ring relative to the outer ring effects the rotation of the object desired to be rotated.

A driving shank assembly includes a tube, a drive head, a connector, and two quick release nuts. The tube has two enlarged portions each having a mounting recess and an external thread. Each of the enlarged portions has a plurality of slits and a plurality of elastic clamping pieces between the slits. The drive head has a driving recess and a mounting shaft. The mounting shaft of the drive head is inserted into the mounting recess of the tube. The connector has a mounting shaft and a connecting shank. The mounting shaft of the connector is inserted into the mounting recess of the tube. The connecting shank of the connector has a retaining groove for mounting an actuating tool. Each of the quick release nuts has an internal thread screwed onto the external thread of the tube.

An electronic control device (2) for controlling a sensor (3) comprising a box-shaped body provided on one side with an electronic connector (21), suitable for coupling with an analogous electrical connector (31) associated with such a sensor (3). Such a device, inside such a box-shaped body, comprises electrical power supply means (22) for supplying said sensor, at least one electronic control board (23) for controlling said sensor, with which radio transmission means of the data detected by the sensors are associated.

An electronic control device (2) for controlling a sensor (3) comprising a box-shaped body provided on one side with an electronic connector (21), suitable for coupling with an analogous electrical connector (31) associated with such a sensor (3). Such a device, inside such a box-shaped body, comprises electrical power supply means (22) for supplying said sensor, at least one electronic control board (23) for controlling said sensor, with which radio transmission means of the data detected by the sensors are associated.

A power tool includes a housing, a motor, a power output member, a transmission assembly, and a light source device. The power output member extends substantially along an axis and is connected to an operating accessory, and the operating accessory is provided with a working portion. The light source device includes a light guide plate, a light-emitting element, and a circuit board. The light guide plate is formed with a light exit surface for emitting light and a first light incident surface and a second light incident surface for guiding light into the light guide plate. The circuit board is used for installing the light-emitting element. A maximum distance L between the first light incident surface and the second light incident surface along a left-and-right direction is greater than or equal to 0 mm and less than or equal to 7 mm.

The invention relates to a power tool that can be held with one hand for reversing, comprising: a casing having a grip part and a manipulation port; a driving device having a control member; the control member is capable of controlling an actuation direction of the driving device; a power source disposed below the driving device and capable of driving the driving device; a reversing assembly disposed at a periphery of the power source and having a reversing member; the reversing member controls the control member to generate changes of displacement, a driving direction of the driving device is changed by action of turning the reversing assembly that is away from the driving device, and there is an appropriate manipulating distance between the grip part and the manipulation port, so that a user is capable of manipulating by holding and reversing the power tool with one hand at a same position.

A tensioning apparatus is adapted to simultaneously tension a number of jackbolts of a multi jackbolt tensioner. The tensioning apparatus may be made compact by overlapping gear disks of the spindle gears and further act as a torque multiplier between the other gears of the tensioning apparatus. The tensioning apparatus can be part of a combination with a power transfer assembly.

A rotary fastening device includes a rotating axial member and an inertia member. The rotating axial member includes a base body, an input end, an output end and an engaging portion. The input end is disposed at one end of the base body and selectively connected to a wrench. The output end is disposed at the other end of the base body. The engaging portion is disposed on the base body. The inertia member is detachably connected to the rotating axial member, and includes a gravity portion and an engaging hole. The gravity portion is extended toward the output end of the rotating axial member so as to form an annular space. The engaging hole is communicated to the annular space.

A pawl mechanism for an indexable tool and adapted to selectively transmit rotational motion of a yoke of the tool to a drive lug of the tool in one of first and second rotational directions. The pawl mechanism including a pawl carrier, first and second pawls pivotably coupled to the pawl carrier, and a selector switch rotatably coupled to the pawl carrier and adapted to selectively position the first and second pawls to transmit rotational motion of the yoke to the drive lug in one of the first and second rotational directions.