A torque transfer assembly for a bit holder includes an axial movement limiting subassembly and a rotation limiting subassembly. The axial movement limiting subassembly is configured to retain a drive body of the bit holder in proximity to a driven body of the bit holder. The rotation limiting subassembly is configured to cause torque applied to the drive body to be transferred to the driven body. The rotation limiting subassembly includes a first cam body at a distal end of the drive body and a second cam body at a distal end of the driven body. The first and second cam bodies are configured to transfer a majority of the torque between the drive body and the driven body indirectly via the torque transfer assembly by limiting rotation of the first cam body relative to the second cam body.

A filing and fastener driving bit assembly for deburring the end of a pipe includes a shaft that has a first end and a second end. A first section of the shaft that is positioned adjacent to the first end is hexagonally shaped. The first section is insertable into a chuck of a rotary tool to couple the shaft to the rotary tool. A second section of the shaft that is positioned between the first section and a second end of the shaft is textured. The second section is used to file an edge of a tubular substrate, such as Electrical Metallic Tubing, as the shaft is rotated by the rotary tool. A screwdriver tip that is coupled to the second end of the shaft is insertable into a complementary head of a fastener, positioning a user to utilize the rotary tool to drive the fastener.

A tool adapter includes a body and a retaining device. The body has a coupling hole and a side hole interconnected with the coupling hole. The retaining device includes an outer sleeve and a retaining member. The outer sleeve is movable relative to the body and is provided with an interacting portion. The retaining member has an engaging portion arranged in the side hole, a first portion arranged on an outer periphery of the body, and a bend portion located between the engaging portion and the first portion. The interacting portion releasably abuts against the bend portion in response the movement between the outer sleeve and the body.

A torque wrench assembly comprises a torque wrench and a reaction arm and locking means for locking together the torque wrench and the reaction arm. The locking means comprises a connection member located on the torque wrench; an opening on the reaction arm for receipt of the connection member of the torque wrench; a locking member slidably mounted in a channel on the reaction arm, the locking member including an aperture sized to allow the connection member to pass therethrough; and biasing means arranged to bias the locking member into a position wherein the aperture is partially aligned with the opening. The connection member has an insertion end for insertion into the opening of the reaction arm, and immediately adjacent the insertion end is a recess. The recess is shaped to receive a part of the locking member.

An apparatus and method for detecting structural and material defects in a fastener driven during a manufacturing process includes a driving tool capable of recording an angle-torque trace during the driving of the fastener and a machine learning engine operably connected to the driving tool for analyzing the recorded angle-torque trace. The machine learning engine can be provided with a number of sample angle-torque traces from sample fasteners and can self-determine a stored trace including tolerances for acceptable angle-torque trace data from the samples in an unsupervised learning process or protocol without the need for defined anomalous and non-anomalous samples being provided to the machine learning engine. Using the self-defined stored trace and acceptable tolerances, the machine learning engine can analyze attributes of subsequently recorded angle-torque traces to ascertain whether the attributes of the recorded angle-torque traces indicate anomalies within the fastener identified by the recorded trace.

A tool adapter with a collar and a plurality of socket adapters is provided. The device includes an elongated shaft having an attaching end and a working end. A spring partially encircles the elongated shaft and is coupled to a collar. The spring biases the collar towards the working end of the elongated shaft. The collar is slidable along the elongated shaft. The collar partially encases a pivoting connector. The plurality of socket adapters is disposed on the pivoting connector. One or more removable locking pins secures the collar in position over the pivoting connector. A pair of parallel arms are disposed on opposing sides of the working end. The pivoting connector may freely rotate between a pair of parallel arms at a connecting point when the collar is slid towards the attaching end.

An installation tool and fastener is particularly adapted for fastening a top plate to a roof support member and other structural connections. The installation tool comprises a telescopic tool assembly which transfers torque from a power driver tool to a fastener drive coupler. The installation tool has a receiver guide which is configured to concentrically guide a fastener into driver engagement with a fastener coupler. The coupler may have a driver tip with radial projections, a Philips driver tip or a square driver tip. In one embodiment, the installation tool fastener has a head with a maximum head diameter equal to the major thread diameter and a recess for coupling with the drive coupler.

A lockable adapter is configured to couple a drive socket to a tool. The lockable adapter includes a body defining a longitudinal axis. The body is configured to couple the lockable adapter to the tool. The lockable adapter includes a sleeve moveably coupled relative to the body along the longitudinal axis of the body between a first position and a second position. The sleeve is configured to interface with the drive socket to support the drive socket on the sleeve. The lockable adapter includes a collar moveable relative to the sleeve. The sleeve moves into the second position configured to lock the drive socket to the sleeve in response to inserting the drive socket onto the sleeve. The sleeve moves into the first position configured to allow removal of the drive socket from the sleeve in response to moving the collar relative to the sleeve.

A power tool includes an illuminating portion as an indicator with improved viewability. A screwdriver includes a motor, an output unit driven by the motor, a housing accommodating the motor and including a grip and a battery mount below the grip, a switch held on the grip, a control circuit board accommodated in the battery mount, and a light emitter on an upper surface of the control circuit board. The batter mount has an upper surface with a first hole located in a left area or a right area of the upper surface. The light emitter emits light viewable through the first hole.

A torque transfer assembly for a bit holder includes an axial movement limiting subassembly and a rotation limiting subassembly. The axial movement limiting subassembly is configured to retain a drive body of the bit holder in proximity to a driven body of the bit holder. The rotation limiting subassembly is configured to cause torque applied to the drive body to be transferred to the driven body. The rotation limiting subassembly includes a first cam body at a distal end of the drive body and a second cam body at a distal end of the driven body. The first and second cam bodies are configured to transfer a majority of the torque between the drive body and the driven body indirectly via the torque transfer assembly by limiting rotation of the first cam body relative to the second cam body.