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.

Chuck wrenches are disclosed that include a chuck engagement portion and a sleeve. The chuck engagement portion allows the chuck wrench and chuck to remain coaxial to provide stability to the chuck wrench and chuck assembly. The sleeve prevents a pinch point from being formed between the chuck wrench and the chuck. The chuck wrenches may be used in bolting operations such as mine roof support bolting.

The present disclosure generally relates to a handle for a hand tool. The handle comprises at least four prongs extending outwardly from a central point. An arcuate surface is disposed between each of the at least four prongs. A connection member extends outwardly from the central point perpendicularly in relation to the at least four prongs. The connection member may removably engage with the hand tool.

A hand tool assembly includes a grip having a slot communicating with the first end and a lateral side of the grip. A rod is pivotably connected to the grip and includes a function end. The rod is engaged with the slot to be co-axially connected with the grip, or the rod is positioned perpendicularly relative to the grip. An end part is connected to the second end of the grip and includes an engaging portion which protrudes beyond the second end of the grip. A magnet is connected to one end of the rod so as to attract the end part in the grip.

A ratchet screwdriver includes a mounting seat, a fixing ring, a control member, a driving shaft, two pawls, two springs, a fixing ring, a control member, a bead, a positioning spring and a bolt. The mounting seat has a front with a first slot, a second slot, a first extension slot, a second extension slot, a passage, a first hole and a second hole. The driving shaft has a ratchet portion. Each pawl is biased by one spring so as to be engaged with the ratchet portion. The control member is rotatably mounted to the mounting seat and the driving shaft to pivot the pawls to engage or disengage with the ratchet portion.

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.

A method and device for inserting screws into a patient, such that when the device is removed the device does not stick to the screw. The device, being a push-off driver, may have a handle, an inner driver, and a threaded driver sleeve having a button mechanism and a plurality of spheres, and an inner sleeve. The method includes the steps of assembling a push-off driver attaching a bone screw to the push-off driver inserting the bone screw and detaching the bone screw from the driver by unthreading the threaded driver sleeve from the polyaxial screw which causes the spheres in the recess of the inner driver to back up against the start of the recess and causing the threaded driver sleeve to push-off the polyaxial screw from the inner driver.

A flexible surgical screw driver comprises a rotatable handle member, a shaft member and a flexible member. The handle member is configured with a first coupling means and the shaft member with a second coupling means. These first and second coupling means are configured to cooperate such that the handle member and the shaft member are angularly displaceable relative to each other and such that said handle member and said shaft member are non-rotatably coupled to each other for driving a screw with rotation transmitted from the handle member. The flexible member is configured to connect the handle member and the shaft member to each other and hold said handle member and said shaft member together such that the longitudinal axes thereof are substantially aligned and such that angular displacement of the handle member and the shaft member relative to each other such that the longitudinal axes thereof are misaligned, can be performed against the action of said flexible member.

A tool grip is provided, includes a grip portion, a metal base, and a coating. The metal base is disposed on the grip portion, the metal base includes a hole for receiving a drive rod and a plurality of rib portions extending radially outwardly relative to the hole. Each of the plurality of rib portions includes a bridge section and a grip plate. The bridge section extending radially is connected with the grip plate and located between the hole and the grip plate. The grip plate is greater than the bridge section in circumferential size. The coating covers the metal base. At least part of the coating is disposed in a recess between adjacent two of the rib portions. At least part of each of the grip plate is exposed radially relative to the coating.

An insulating ratchet driver with pivoting head has: a handle, a spring, a pressing knob, a driving head and a pivoting member. The pivoting member is provided with a cover made of an insulating material. All metal portions of the handle, the pressing knob and the driving head are coated with an insulating layer.