A tool bit with a surface layer metallurgically bonded on a substrate layer using electrospark deposition (ESD) that allows the tool bit to reduce camout and engage a fastener head for one-handed starting and removal. The surface layer has a rougher finish, compared to conventional tool bits, and therefore better grips engagement surfaces of a mating recess of the fastener during use. The reduction of camout provides greater durability to the tool bit and resists erosion and wear of the engagement surfaces of the fastener.

A tool bit with a surface layer metallurgically bonded on a substrate layer using electrospark deposition (ESD) that allows the tool bit to reduce camout and engage a fastener head for one-handed starting and removal. The surface layer has a rougher finish, compared to conventional tool bits, and therefore better grips engagement surfaces of a mating recess of the fastener during use. The reduction of camout provides greater durability to the tool bit and resists erosion and wear of the engagement surfaces of the fastener.

A container includes a handheld body, a positioning rod, and a storage assembly. The handheld body defines a storage space. The positioning rod has at least one positioning part. The storage assembly includes a push-pull rod, a storage base, and a positioning member. The push-pull rod is operable to drive the positioning member to move therewith between a storage position, where the positioning member separably engages the at least one positioning part so as to position the storage base in the storage space, and an accessing position, where the positioning member is disengaged from the at least one positioning part.

A clamping tool is provided comprising a body, containing control circuits and electronic processing circuitry and having, at one end, a handle for gripping by an operator making the clamping, and on the other end, an arm. The arm comprises, at its free end, a seat that can be alternatively pluggable to a plurality of inserts suitable for engaging the tool with a corresponding type and/or dimension of a mechanical member on which the tool is configured to operate to perform a clamping operation. Sensor means are provided on the arm for detecting tightening conditions exerted on the mechanical member. Furthermore, a microprocessor electronic card is provided on the are for receiving analogic signals from the sensor means, converting the signals into digital format, and handling transfer of the signals in digital format to the electronic processing circuitry.

Release System and Cutting Profile applied to disposable self-locking intracranial drill bit, comprising a disposable cranial drill bit, for single-use, assembled from a coupling mechanism with an internal drill bit and another external one, where an axial load is applied to the cutting edges to transmit the rotary movement to the device, so that, after accessing the cranial bone the mechanism is released and the drill bit ceases its movement, being the coupling mechanism composed by a mechanical arrangement of two sliding helical cams, which interact with a ring, the geometry of which results in coupling, when the drill bit contacts the cranial bone surface, and the drill bit release, once the internal drill bit crossed the bone without affecting the lower cranial layers. The set is encapsulated in a plastic body, which allows the drill bit assembly in a number of craniotomy equipment.

A tool kit is provided that includes a tool including a handle and a tool head and a set of tool accessories configured to be coupled to the tool head. The tool accessories each including a drive end that is configured to be coupled to the tool head and a working end opposite the drive end. The tool kit includes a container that is movable between an open position and a closed position. The container includes a first portion including a first retainer that supports the tool, a second portion and a middle portion dividing the first portion from the second portion. The middle portion including a second retainer that supports the tool accessories and the container is selectively stored in a closed position where the middle portion supports the container on a surface in an upright position.

A modular tool bit holder system includes an angle tool bit holder, and a flexible shaft tool bit holder. The angle tool bit holder includes a housing containing a first input shaft, a first angle gear rotatably drivable about a first axis, a second angle gear, and a first bit holder rotatably drivable by the first angle gear about a second axis at an angle to the first axis. The flexible shaft tool bit holder includes a second input shaft, a flexible intermediate shaft rotatably drivable by the second input shaft, and a second tool bit holder rotatably drivable by the flexible intermediate shaft. The angle tool bit holder and the flexible shaft tool bit holder are operable separately or in combination. A connection assembly is configured to non-rotatably couple the angle tool bit holder and the flexible shaft tool bit holder when they are operable in combination.

The invention aims to provide a rotation tool enabling work without obstructing a view of an operator and facilitating fine-adjustment for the tool. A rotation tool includes a flexible shaft including a tool portion at one end and a grip portion at the other end; and a cylindrical exterior body including curved portion on at least a part thereof, wherein a spiral protrusion is formed on at least a part of the shaft and a spiral groove is formed on at least a part of the curved portion, and the shaft is configured to be movable inside the exterior body by screwing the spiral protrusion and the spiral groove to each other.

A tool connecting rod is provided, including: a main body, a sleeve member and a magnetic mechanism. The main body includes a driving portion and an assembling portion opposite to the driving portion, and the assembling portion has an assembling hole extending in an axial direction. The sleeve member is non-rotatably disposed on the assembling portion and includes at least one sleeving hole configured to be connected with a connecting member. The magnetic mechanism is disposed within the assembling hole and includes a magnetic member penetrating into the sleeve member and an elastic member abutted against and between the main body and the magnetic member. In a circumferential direction of the magnetic member, a first gap is defined between the sleeve member and the magnetic member so that the sleeve member and the magnetic member are movable radially relative to each other.

A motor module and an electric powered tool using the motor module, which comprises: a motor, a cooling fan mounted on the rotor of the motor, and a control circuit board to control the motor, wherein, the cooling fan is located between the motor and the impact output module. In the present invention, the cooling fan is configured on the front end of the motor, and the control circuit board is configured on the rear end of the motor, thus the rotary shaft of the motor does not need to go through the control circuit board. Therefore, the control circuit board does not need to provide a through hole for the rotary shaft to go through, and the control circuit board can have a larger area.