A tension lever includes an outer body including a top, a bottom, and a plurality of outer body sides including a first outer body side and a second outer body side opposite to and facing the first outer body side, the first outer body side having a substantially planar surface extending along a first direction and a second direction crossing the first direction, an upper first opening defined in the top and defining an upper inner body that extends along the second direction, a lower first opening defined in the bottom and defining a lower inner body that extends along the second direction, a second opening defined in the first outer body side and the second outer body side, the second opening defining a channel that extends along a third direction crossing the second direction, and a barbell including a shaft and a pair of beads at opposing ends of the shaft, the barbell being received in the second opening.

A tension lever includes an outer body including a top, a bottom, and a plurality of outer body sides including a first outer body side and a second outer body side opposite to and facing the first outer body side, the first outer body side having a substantially planar surface extending along a first direction and a second direction crossing the first direction, an upper first opening defined in the top and defining an upper inner body that extends along the second direction, a lower first opening defined in the bottom and defining a lower inner body that extends along the second direction, a second opening defined in the first outer body side and the second outer body side, the second opening defining a channel that extends along a third direction crossing the second direction, and a barbell including a shaft and a pair of beads at opposing ends of the shaft, the barbell being received in the second opening.

A device for unfastening fasteners includes an operation device, a cable unit and a working unit. The cable unit is connected between the operation device and the working unit. The operation device includes a first part and a second part pivotably connected to each other by a pivot. The first part includes a first extension with a first hole. The second part includes a second extension with a second hole. A first slot communicates with the first hole. A second slot communicates with the second hole. The cable unit includes a cable and a sheath. The cable extends through the first and second holes via the first and second slots, and connected with an end piece which contacts the first extension. A stop member is mounted to the first extension to close the first slot. The cable is separated from the operation device easily without causing damage to the cable.

A three jaw adjustable socket ratchet wrench apparatus comprised of a permanently attached adjustable socket head assembly having three radially positioned jaws which ride trilaterally within an upper cylindrical housing; the extended wrench embodiment has a flexible ratcheting head and a permanently attached three jaw adjustable socket that swivels angularly from +90 folded to +45 to 180 degrees to 45 degrees back to 180 degrees; the extended swiveled arm female lug end is attached onto the male lug of the ratcheting head which has an and an extending cylindrical, shelled, knurled handle which extends outward in two extended distal lengths which can be locked in any of those three positions with the aid of a spring induced dtente steel ball bearing; the extended swiveled solid arm has a longitudinal horizontal channel where the outer knurled slide handle rides outward from fully retracted to mid extension adjustment to full extension for extra leverage for high torque requirements; the three vertical jaw members of the adjustable socket head end are abutted inward at 15 degrees to the jaws upper housing radial walls of the same angular taper; each of the jaw member have an interior 120 degrees V-notch which becomes a hexagonal configuration when they are trilaterally spaced apart to accept standard hexagonal configured nuts and bolt type fasteners of various; the adjustable socket's head has a lower driver embodiment having a vertical square male shaft that protrudes downward and within the internal central and vertical portion of the ratcheting wheels square female slot; the square male shaft has a vertical through vertical hole to accept a vertical male threaded shaft to control the three jaws to be activated during manual rotation in either a clockwise rotation to expand the jaws opening, and counterclockwise rotation cause the jaws to close in a tapered path; the vertical interior shaft has an upper helix pitch thread screw to accept a horizontal threaded disk of the same thread pitch, the horizontal disk nestles within the horizontal and interior slot on each of the three jaws members, the jaws adjustment in ether rotation is influenced by the users rotation of the lower affixed serrated adjusting knob on the exterior bottom end of the ratcheting head, the ratcheting head having a protective cover plate that is located just below the adjustable sockets lower driver embodiment and nestles into the ratcheting head cavity; the internal vertical adjusting threaded shaft is located between the bottom exterior surface of the ratcheting head and between the radially located jaw members of the sockets' upper housing; when the knurled bottom knob, attached t

A three jaw adjustable socket ratchet wrench apparatus comprised of a permanently attached adjustable socket head assembly having three radially positioned jaws which ride trilaterally within an upper cylindrical housing; the extended wrench embodiment has a flexible ratcheting head and a permanently attached three jaw adjustable socket that swivels angularly from +90 folded to +45 to 180 degrees to 45 degrees back to 180 degrees; the extended swiveled arm female lug end is attached onto the male lug of the ratcheting head which has an and an extending cylindrical, shelled, knurled handle which extends outward in two extended distal lengths which can be locked in any of those three positions with the aid of a spring induced dtente steel ball bearing; the extended swiveled solid arm has a longitudinal horizontal channel where the outer knurled slide handle rides outward from fully retracted to mid extension adjustment to full extension for extra leverage for high torque requirements; the three vertical jaw members of the adjustable socket head end are abutted inward at 15 degrees to the jaws upper housing radial walls of the same angular taper; each of the jaw member have an interior 120 degrees V-notch which becomes a hexagonal configuration when they are trilaterally spaced apart to accept standard hexagonal configured nuts and bolt type fasteners of various; the adjustable socket's head has a lower driver embodiment having a vertical square male shaft that protrudes downward and within the internal central and vertical portion of the ratcheting wheels square female slot; the square male shaft has a vertical through vertical hole to accept a vertical male threaded shaft to control the three jaws to be activated during manual rotation in either a clockwise rotation to expand the jaws opening, and counterclockwise rotation cause the jaws to close in a tapered path; the vertical interior shaft has an upper helix pitch thread screw to accept a horizontal threaded disk of the same thread pitch, the horizontal disk nestles within the horizontal and interior slot on each of the three jaws members, the jaws adjustment in ether rotation is influenced by the users rotation of the lower affixed serrated adjusting knob on the exterior bottom end of the ratcheting head, the ratcheting head having a protective cover plate that is located just below the adjustable sockets lower driver embodiment and nestles into the ratcheting head cavity; the internal vertical adjusting threaded shaft is located between the bottom exterior surface of the ratcheting head and between the radially located jaw members of the sockets' upper housing; when the knurled bottom knob, attached t

An adjustable socket including a housing designed on a longitudinal axis, with a series of grooves extending longitudinally along the interior wall. A disc with drive channels intruding obliquely off-center from the perimeter is locked into position within the housing. Jaw members with drive rods are mounted in the disc drive channels, free to move laterally along fixed paths. An axially rotatable drive core with a drive surface is positioned within the housing, engaging the drive rod of each jaw. Rotation of the drive core forces the jaws to travel inwardly along the disc drive channels as dictated by the drive elements of the drive surface, to be forced against a fastener within the jaws. A locking mechanism holds the jaws in position on the fastener. Release of the locking mechanism allows rotation of the drive core in the opposite direction to release the fastener.

An adjustable socket including a housing designed on a longitudinal axis, with a series of grooves extending longitudinally along the interior wall. A disc with drive channels intruding obliquely off-center from the perimeter is locked into position within the housing. Jaw members with drive rods are mounted in the disc drive channels, free to move laterally along fixed paths. An axially rotatable drive core with a drive surface is positioned within the housing, engaging the drive rod of each jaw. Rotation of the drive core forces the jaws to travel inwardly along the disc drive channels as dictated by the drive elements of the drive surface, to be forced against a fastener within the jaws. A locking mechanism holds the jaws in position on the fastener. Release of the locking mechanism allows rotation of the drive core in the opposite direction to release the fastener.

A torque-transmitting, locking instrument holder, includes a hollow body having a proximal end for receiving an instrument, a distal end for protrusion of the instrument, and a handle to be gripped by an operator. A device is provided for locking the handle to and unlocking the handle from the instrument at least partly disposed within the hollow body. A method for operating the instrument holder includes providing a hollow body having a proximal end for receiving an instrument, a distal end for protrusion of the instrument, and a handle to be gripped by an operator. The instrument is placed at least partly within the hollow body and the handle is locked to and unlocked from the instrument.

A torque-transmitting, locking instrument holder, includes a hollow body having a proximal end for receiving an instrument, a distal end for protrusion of the instrument, and a handle to be gripped by an operator. A device is provided for locking the handle to and unlocking the handle from the instrument at least partly disposed within the hollow body. A method for operating the instrument holder includes providing a hollow body having a proximal end for receiving an instrument, a distal end for protrusion of the instrument, and a handle to be gripped by an operator. The instrument is placed at least partly within the hollow body and the handle is locked to and unlocked from the instrument.

A threaded pin remover for a threaded pin in an interference fit in a structure is provided. The threaded pin remover includes a housing. A pin grasper is slidably mounted in the housing and includes: a first end configured to couple to a linear actuator for slidably moving the pin grasper between an extended position relative to the housing and a retracted position relative to the housing. A second end of the pin grasper includes a pin grasping collet configured to, in the retracted position relative the housing, engage with a portion of the housing to cause grasping of the exposed portion of the threaded pin by the pin grasping collet to release the threaded pin from the interference fit, allowing removing of the threaded pin from the structure.