A wrench head for a universal wrench is disclosed that may include a housing having an upper portion and a lower portion. The wrench head may further include a base plate positioned inside the housing towards the upper portion of the housing, and a plurality of push-rods positioned inside the housing. The wrench head may further include a resilient member positioned inside the housing between the base plate and the distal end of each of the plurality of push-rods. In the default position, the resilient member biases each of the plurality of push-rods, and in the retracted position, the proximal end of each of the plurality of push-rods is pushed against the resilient member to be received along with a portion of the resilient member by a compartment of the plurality of compartments defined at the bottom surface of the base plate.

A universal tool which can be a screwdriver, wrench, pliers, or any other tool. The tool can operate on an object (e.g., a screw, bolt, etc.) of any shape because of a set of pins that can mold to match a shape of the object. For example, a same universal screwdriver has pegs which mold themselves to match a shape of a slotted screw head or mold themselves to match a shape of a philips screw head. A user of the universal screwdriver can then turn such screw by turning the universal screwdriver in a standard fashion. When the universal screwdriver is removed from the object, then the pegs automatically revert themselves to a default position so a different shaped screw head can then be operated on.

A screwdriver capable of driving screws with any shape of head comprises a fixing member and a main body. The main body comprises a first end and a second end, the fixing member fixes on the first end of the main body. The screwdriver further comprises a number of hard and small-diameter cores and a button. The cores are contained in the main body and are partially exposed out of the main body, the button is configured on the second end of the main body and resists against one end of the number of cores. The button drives a part of the number of cores to form a head to match a screw.

Provided is a universal socket ratchet wrench. The wrench comprises a ratchet head (1) having a ratchet mechanism therein, and a handle portion (2) detachably connected to the ratchet head (1) to form a ratchet wrench. The ratchet head (1) is a universal socket ratchet head. The invention combines a universal socket with a ratchet to form a universal socket ratchet wrench compatible with screws/bolts of various sizes, thereby solving a problem in which existing wrenches require frequent change of wrench heads or frequent adjustment of operation angles, and increasing utilization efficiency of a wrench.

A universal tool which can be a screwdriver, wrench, pliers, or any other tool. The tool can operate on an object (e.g., a screw, bolt, etc.) of any shape because of a set of pins that can mold to match a shape of the object. For example, a same universal screwdriver has pegs which mold themselves to match a shape of a slotted screw head or mold themselves to match a shape of a philips screw head. A user of the universal screwdriver can then turn such screw by turning the universal screwdriver in a standard fashion. When the universal screwdriver is removed from the object, then the pegs automatically revert themselves to a default position so a different shaped screw head can then be operated on.

A tool socket contains: a body and an elastic operation assembly accommodated in the body. The body includes an accommodation groove and a fitting orifice. The elastic operation assembly includes a locking seat having multiple apertures. The accommodation groove has a hexagonal wall, six toothed spaces, any two inverted isosceles-trapezoid projections on each of six sides of a hexagonally wall thereof, and an isosceles trapezoid space for separating said any two inverted isosceles-trapezoid projections. The locking seat is formed in a toothed hexagon shape and has six toothed bulges corresponding to the six toothed spaces of the body individually, any two inverted isosceles-trapezoid recesses on each of six sides thereof, and an isosceles trapezoid projection configured to separate said any two inverted isosceles-trapezoid recesses. Said any two inverted isosceles-trapezoid recesses correspond to said any inverted isosceles-trapezoid projections separately, and the isosceles trapezoid projection corresponds to the isosceles trapezoid space.

A universal tool which can be a screwdriver, wrench, pliers, or any other tool. The tool can operate on an object (e.g., a screw, bolt, etc.) of any shape because of a set of pins that can mold to match a shape of the object. For example, a same universal screwdriver has pegs which mold themselves to match a shape of a slotted screw head or mold themselves to match a shape of a philips screw head. A user of the universal screwdriver can then turn such screw by turning the universal screwdriver in a standard fashion. When the universal screwdriver is removed from the object, then the pegs automatically revert themselves to a default position so a different shaped screw head can then be operated on.

A tool including a wrench attached to an elongate shaft to open and close a subterranean stop and waste valve. The wrench may be removably coupled to the shaft by way of an attach mechanism. Sometimes, the attach mechanism can be configured to couple with the distal end of a commercially available valve actuation tool. The instant tool can couple with the actuating handle of the stop and waste valve at a plurality of orientations of the tool's handle with respect to the valve's handle. A preferred wrench includes anti-stiction structure to facilitate insertion and retraction of the wrench with respect to an access port for the valve.

A wrench head for a universal wrench is disclosed that may include a housing having an upper portion and a lower portion. The wrench head may further include a base plate positioned inside the housing towards the upper portion of the housing, and a plurality of push-rods positioned inside the housing. The wrench head may further include a resilient member positioned inside the housing between the base plate and the distal end of each of the plurality of push-rods. In the default position, the resilient member biases each of the plurality of push-rods, and in the retracted position, the proximal end of each of the plurality of push-rods is pushed against the resilient member to be received along with a portion of the resilient member by a compartment of the plurality of compartments defined at the bottom surface of the base plate.

A self-forming socket assembly includes a socket having an operational end and a connection end. A recess is defined in the operational end and a passage is defined in the connection end and communicates with the recess. A board is rested on a shoulder in the recess and includes a central hole and multiple bores. Each bore has a gripping pin retractably inserted therein, and includes a polygonal section. A bit movably extends through the passage of the socket and the central hole of the board. The bit is positioned in the central hole of the board or positioned to protrude beyond the recess.