A quick-release structure includes a shaft and a driving assembly. Two ends of the shaft have a receiving hole and a connecting hole, respectively. The driving assembly includes a rotating handle and a connecting rod. One end of the rotating handle is provided with an end cap. The connecting rod includes a pivoting end and a driving section. The rotating handle is pivotally connected to the pivoting end of the connecting rod so that the rotating handle can be pivoted relative to one side of the connecting rod. When in use, the driving section is engaged in the connecting hole, and the rotating handle can be turned to drive the shaft to rotate; when not in use, the driving assembly is inserted into the receiving hole, and the end cap is pressed against an outer end of the receiving hole to be positioned.

A striking hand tool includes a grip component where an external surface has a front arc half and a rear arc half, wherein an area of the grip is smaller in a first cross sectional plane further from a head of the tool than a second plane closer to the head portion. A ρ value of the front arc half in the first cross sectional plane is less than approximately 0.45. A measurement from a first axis to a frontmost point in the first cross sectional plane is between 17.5 mm and 19 mm. A ρ value of the front arc half in the second cross sectional plane is less than approximately 0.5. A measurement from the first axis to a frontmost point in the second cross sectional plane is between 18.5 mm and 20 mm. Methods of manufacturing and striking hand tools having desirous durometer measurements are also disclosed.

The pivoting and extending interchangeable hand tool device disclosed herein may comprise a tool head and a torque arm that pivot relative to one another, a secondary torque arm for extending length and increasing appliable torque, and a “T”-handle for additional support. The pivoting and extending interchangeable hand tool device may further comprise a plurality of tool heads that may be interchanged within the secondary torque arm, and may be provided commercially in a multiple-tool set. The device is designed to overcome the shortcomings in the prior art, which specifically include the ability to work in tight spaces while reducing the loss of torque when pivoting a torque arm, the loss of strength inherent in an extendable torque arm, and the bulkiness of a “T”-handle.

A socket wrench includes a ratcheting end including a circular opening, a crescent recess disposed on one surface, the crescent recess being adjacent to the circular opening and communicating therewith, the crescent recess having a through hole open to the other surface, and two opposite cavities at both ends of the crescent recess respectively; a cylindrical socket disposed in the circular opening; a crescent cover including two opposite projections on an outer surface, a circular hole in an intermediate portion, and two grooves adjacent to the projections respectively, the crescent cover being disposed on the crescent recess with the projections positioned in the cavities respectively; a pivotal pawl having a threaded hole, the pivotal pawl being disposed through the circular hole to align with the through hole; and a threaded fastener driven through the through hole into the threaded hole to pivotably fasten the pivotal pawl.

The combination of a driver and fastener that allows a user to insert and remove the fastener by applying larger than normal torque loads to it includes: (a) a fastener with a proximal end handle and a distal end head configured to provide a standard indentation and an additional recess that provides additional surface area that allows larger torque loads to be applied to the fastener, (b) a main driver with a shaft having a central bore, a handle at its proximal end and a head at its distal end configured to allow it to be temporarily inserted into the fastener's head, and (c) an awl driver having an awl shaft with an awl handle affixed to its distal end and its proximal end including a tip configured to allow it to pass through the main driver's bore and be brought into contact with the fastener's head where it is used to cut into the fastener cannula so as to temporarily adhere the awl driver to the fastener.

A ratchet wrench system and kit enable users thereof to enhance grip and mechanical advantage in applying torque to either (a) rotate rotary fasteners or (b) prevent rotary fastener rotation. The ratchet wrench system and kit include at least one ratchet wrench assembly and at least one ratchet interface. The ratchet wrench assembly has a ratchet head and a lever arm. The ratchet head has a male side and a female side. The female side includes both deep and shallow sections. Long and short ratchet interface elements both include a male interface end and a female interface end. The male and female interface ends are respectively matable with the female and male sides of the ratchet wrench assembly. The long and short ratchet interfaces are interchangeably matable with the ratchet wrench assembly for enabling a secondary wrench to grip and enhance mechanical advantage via the ratchet wrench assembly.

A prying device includes a one-piece body. The body includes first and second structural sections. The first structural section includes first and second surfaces and first and second lateral sides. The first and second surfaces are disposed oppositely. The first and second lateral sides are disposed oppositely and each extends from the first surface to the second surface. The second surface curves into a concave shape in a direction transverse to the axis. The second structural section includes third and fourth surfaces and third and fourth lateral sides. The third and fourth surfaces are disposed oppositely. The third and fourth lateral sides are disposed oppositely and each extends from the third surface to the fourth surface. The first and third surfaces are juxtaposed and on the same side of the body. The second and fourth surfaces are juxtaposed and on the same side of the body.

A prying device includes a one-piece body. The body includes first and second structural sections. The first structural section includes first and second surfaces and first and second lateral sides. The first and second surfaces are disposed oppositely. The first and second lateral sides are disposed oppositely and each extends from the first surface to the second surface. The second surface curves into a concave shape in a direction transverse to the axis. The second structural section includes third and fourth surfaces and third and fourth lateral sides. The third and fourth surfaces are disposed oppositely. The third and fourth lateral sides are disposed oppositely and each extends from the third surface to the fourth surface. The first and third surfaces are juxtaposed and on the same side of the body. The second and fourth surfaces are juxtaposed and on the same side of the body.

A screwdriver includes a shank having a driving end and a connection end which is fixed to a handle. The handle has a core portion which is mounted to the connection end of the shank by way of injection molding. Multiple first portions and multiple second portions are alternatively attached to the outside of the core portion. The first portions are made of material that is softer than that of the second portions so as to provide comfortable grasp to the user's hand.

A customized tool adapter that allows for a typical wrench to be connected temporarily, but with great stability to a typical ratchet. Such an application is capable of being used with several types wrenches and ratchets, including various sizes, units of measurement and other applications and is generally hexagonal in nature having swaged gripping lips.