An insulated screwdriver includes: an insulator, a first metal sleeve, a second metal sleeve, an insulated sleeve, and a handle. The insulator has a first connecting portion and a second connecting portion. The first metal sleeve is disposed on the first connecting portion of the insulator. The second metal sleeve is disposed on the second connecting portion of the insulator, and the second metal sleeve and the first metal sleeve are insulated. The insulated sleeve covers the insulator, the first metal sleeve, and the second metal sleeve. The handle has an accommodating hole for accommodating the insulated sleeve. According to the insulated screwdriver of the present invention, because the first metal sleeve and the second metal sleeve are insulated, there is no electric shock danger for a user, and safety in use of the insulated screwdriver of the present invention may be improved.

A flex clipper provides a feature to help the cutting blade set float more effortlessly by adjusting automatically to the contours of a client's head to prevent getting stuck and causing cuts and irritation to the scalp. The hair clippers preferably also uses a self-contained motor-driven adjustment mechanism to adjust the relative position of the stationary and reciprocating blades of a common type of blade set. Two momentary switches operable by the thumb of the hand holding the clipper afford a barber total automatic adjustment with the clipper itself in an on or off condition.

A set for dorsal spinal fusion comprises a detachable handle made of plastic material and a screwdriver that can be coupled to the removable handle without the use of tools. A receptacle of the handle for the screwdriver is made of plastic material. Also, a handle is disclosed, which in particular comprises a ratchet mechanism.

A hand tool includes a handle, a press member, a shank body and multiple latch assemblies. The handle is formed with a receiving cavity and a locating hole in communication with the receiving cavity. The press member is movably disposed in the locating hole. The shank body is fitted in the receiving cavity and movable relative to the handle. The shank body is formed with multiple sockets. The latch assemblies are respectively mounted in the sockets. When the shank body is moved, (for example, slid or rotated) relative to the handle to make one of the sockets aligned with the locating hole, the latch assembly latches the shank body with the handle. When pressing the press member, the latch assembly unlatches the shank body from the handle, the shank body is movable relative to the handle.

This present invention relates to an extendable wrench and ratchet tool kit comprising a plurality of tool heads, one or more metal shafts or rods, and a metal tube or cylinder including a handle. The extendable wrench and ratchet tool allows an operator to connect any of the metal shafts to the handle at one end and connect any of the tool heads to the shafts at another end. The extendable wrench and ratchet tool kit features a spring-loaded locking mechanism or other similar mechanism to lock the metal shaft or rod at equally spaced grooves in order to selectively extend or retract the metal shaft to a desired length in order to access a fastener positioned in a hard to reach area.

A screwdriver assembly includes a screwdriver shaft and an insert. The screwdriver shaft extends longitudinally from a proximal end to a distal end and having a longitudinal channel extending therethrough. The insert has a longitudinal shaft received within the longitudinal channel and a distal end extending distally relative to the distal end of the screwdriver shaft. The insert shaft is rotatable relative to the screwdriver shaft. The distal end of the insert is sized and shaped to engage a head of a screw. The distal end of the insert is disengaged from the screw head by rotating the insert relative to the screwdriver shaft.

A screwdriver comprises a handle including a butt and a shank extending from the handle and including a tip. The butt includes a first indicating element having a shape corresponding to the tip and a plurality of second indicating elements arranged around the first indicating element. Each of the second indicating elements has the shape.

A wrench includes a tool head, an outer tube unit, a rod unit and a sleeve unit. The outer tube unit includes an outer tube, a tail seat and a biasing member. The tail seat is detachably mounted to the outer tube. The rod unit includes an inner rod telescopically disposed in the outer tube and formed with a plurality of cavities. The biasing member biases the inner rod away from the tail seat. The sleeve unit is slidably sleeved on the outer tube and includes a positioning ball engageable with a selected one of the cavities to prevent the inner rod from moving relative to the outer tube and removable from the selected one of the cavities to allow the inner rod to move relative to the outer tube.

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 shaft securing mechanism is provided that includes pins, bearings or other securing members that are biased inwardly at an angle with respect to the axis of the shaft being engaged by the mechanism. The angled orientation of the engagement of the pins with the shaft enables the pins to more securely hold the shaft relative to the handle without significant slop or play in the lateral or longitudinal directions. The mechanism also includes a tapered inner surface to increase the ease of alignment of the shaft with the mechanism, which allows the shaft to be engaged with the handle by only pressing and rotating the shaft into the mechanism within the handle.