A fastener extractor device for removing seized fasteners and aiding in disengaging the extractor device from said seized fastener afterwards. The extractor device includes a shank body, a drive head, a torque-tool body, a tubular sleeve, an external thread, and an internal thread. The torque-tool body includes a plurality of laterally-bracing sidewalls and an at least one engagement feature. The engagement feature is integrated into a specific sidewall to bite into a sized fastener. The drive head is terminally and concentrically connected to the shank body to receive an external torque tool. The torque-tool body is terminally and concentrically connected to the shank body, opposite the drive head. The tubular sleeve is slidably engaged along the shank body through the internal thread and the external thread to physically disengaged the torque-tool body from a seized fastener.

A combination includes a ratchet wrench and a driving member. The ratchet wrench includes a body and a ratchet wheel mounted in the body and rotatable relative to the body about a rotational axis. A driving hole extends through from a side through the other side of the body along the rotational axis and includes an inner periphery having a plurality of abutment surfaces. A corner is formed between each two adjacent abutment surfaces. At least one limiting portion protrudes from the inner periphery of the driving hole in a radial direction perpendicular to the rotational axis. The driving member includes at least one evasive portion and is coupled to the driving hole. The driving member is movable between a first coupling position and a second coupling position along the rotational axis when the at least one evasive portion is aligned with the at least one limiting portion.

A drill bit comprising: a tubular shaft having a cutting tip at a first end and a drive shank at a second end, wherein the drive shank is adapted to engage with a drive motor, and wherein the cutting tip comprises an axially protruding shape. A first flute portion positioned between the cutting tip and the drive shank, wherein the first flute portion includes a first thread with a first sharpened cutting edge in a first helix; and wherein the first end of the cutting tip has a point angle greater than 135 degrees, and the cutting tip includes a cutting surface that joins to the first thread, and wherein the cutting tip act as a bit driver and has a profile, when viewed axially from the first end has one shape type.

A multi-functional screwdriver structure contains a body, a grip, a receiving chamber, a cap, an accommodation sleeve, multiple sockets, a shank, and a movable connector formed on a front end of the shank and connected with an orifice of a first screwdriver bit by using a screw bolt. The first screwdriver bit includes a square socket joint extending from a front end thereof, and the first screwdriver bit includes a hexagonal hole defined on a front end of the square socket joint. A bit holder is connected on a front end of the grip and is configured to receive the shank in a center of the bit holder, and the bit holder includes multiple apertures defined around the center thereof and configured to accommodate multiple second screwdriver bits.

A snap hook includes a frame, a gate, and a screwdriver blade. The frame has a first hook portion and a second hook portion located on different sides. The gate has an abutting end abutting against an end of the first hook portion. The screwdriver blade is pivotally connected to the frame, and a working end is formed on an end of the screwdriver blade whereby the snap hook could be engaged with two objects through the first hook portion and the second hook portion. The gate blocks a side opening of the first hook portion, and therefore the object hanged in the first hook portion would not fall out accidentally. Furthermore, the screwdriver blade increases the added value of the snap hook.

A hex shank nut driver with onboard slidable sockets is disclosed. The aforementioned invention being comprised of a hex-shaped shank made of a rigid metal such as stainless steel, titanium and the like and having one end configured to be received by a conventional nut driver handle and another end configured to be received by sockets thereon. Said invention providing a means for storing said often-used sockets on the shank. The shank having raised portions preventing stored sockets from contacting each other as well as a retainer ring to selectively hold a socket for driving. The sockets being different sizes allowing them to be engaged with one another and also being color coded to allow for quick selection in the field. An object of the invention is to provide a means for easy access and storage to commonly-used nut drivers for mechanics in the field.

A constant torque tool provided, including: a driver body, including a handle and a working rod connected with the handle, at least one of the handle and the working rod being integrally formed with a first blocking structure; a sleeve member, being rotatably disposed around the driver body and integrally formed with a second blocking structure, the second blocking structure being releasably stuck with the first blocking structure in a rotation direction of the sleeve member; wherein when there is a relative torque greater than a predetermined torque between the sleeve member and the driver body, at least one of the second blocking structure and the first blocking structure deforms and the second blocking structure is slidable over the first blocking structure in the rotation direction.

A screw bit body which allows for efficient torque force application onto a socket fastener. The screw bit body includes a plurality of laterally-bracing sidewalls, a first base, and a second base. The laterally-bracing sidewalls are radially distributed about a rotation axis of the screw bit body with each further including a first lateral edge, a second lateral edge, a bracing surface, and an engagement cavity. The engagement cavity creates an additional gripping point to prevent slippage in between the screw bit body and the socket fastener. The engagement cavity traverses normal and into the bracing surface. Additionally, the engagement cavity traverses into the screw bit body from the first base to the second base. The engagement cavity is specifically positioned offset from the first lateral edge by a first distance.

A screwdriver bit assembly includes a magnetic ring mounted in a front end of a sleeve hole of a sleeve. A retaining ring is made of a material more rigid than the sleeve, is mounted in the sleeve hole, and is located behind the magnetic ring. A screwdriver bit includes an insertion end, an extending section behind the insertion end, a flange section behind the extending section, and a clamping section behind the flange section. The front end of the screwdriver bit extends through the sleeve hole of the sleeve, the retaining ring, and the magnetic ring. The insertion end extends beyond the sleeve and is located in front of a front end face of the sleeve. The flange section abuts the retaining ring. The clamping section is held by a holding device mounted on the sleeve, providing a holding force towards a longitudinal axis of the sleeve hole.

A screwdriver bit includes a shank and a function portion which is integrally formed with the shank. The function portion includes a driving end and a transitional portion which is integrally formed with the driving end. At least one residual stress-relief groove is defined in the outer surface of the transitional portion. The at least one residual stress-relief groove includes a start point and an end point. The start point is located at the lowest point of one of chip flutes of the screwdriver bit. The end point is located at a conjunction portion between the transitional portion and the shank. The least one residual stress-relief groove adjusts the locations of the residual stress-relief groove of surface extension of the screwdriver bit, or even removes the residual stress-relief groove of surface extension of the transitional portion.