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.

A tool for removing a first nut and a differently sized second nut includes a housing, a first cage and a second cage, and a first canted coil spring and a second canted coil spring. The illustrative housing has a top surface, a first interior sidewall, a bottom surface and a second interior sidewall. Each illustrative interior sidewall includes a lobed cam and a groove. Each cage includes jaws that grip the respective not and each cage also includes a groove. The canted coil springs are disposed in the grooves corresponding to the cage and the housing.

A tool for removing a first nut and a differently sized second nut includes a housing, a first cage and a second cage, and a first canted coil spring and a second canted coil spring. The illustrative housing has a top surface, a first interior sidewall, a bottom surface and a second interior sidewall. Each illustrative interior sidewall includes a lobed cam and a groove. Each cage includes jaws that grip the respective not and each cage also includes a groove. The canted coil springs are disposed in the grooves corresponding to the cage and the housing.

A self-adjusting-size socket formed as a pair of coaxial tubes in rotatable relationship to one another, the innermost tube having a limited directional distance and independently rotational relationship with the outer tube by rotating along a mated set of threaded structures on immediately adjacent sides of the coaxial pair of tubes. The inner tube is a deep well chamber having a tool receiving end and a fastener receiving end, with an annular array of independently pivotable fingers arranged about an internal perimeter of the inner tube at the fastener receiving end. Rotation of the inner tube pushes a lowermost portion of the inner tube against the fingers, pushing them into the deep well chamber and around an irregularly shaped bolt or nut style fastener, gripping the fastener and allowing a user to remove or reinstall the fastener. The fingers self-adjust around the fastener.

A self-adjusting-size socket formed as a pair of coaxial tubes in rotatable relationship to one another, the innermost tube having a limited directional distance and independently rotational relationship with the outer tube by rotating along a mated set of threaded structures on immediately adjacent sides of the coaxial pair of tubes. The inner tube is a deep well chamber having a tool receiving end and a fastener receiving end, with an annular array of independently pivotable fingers arranged about an internal perimeter of the inner tube at the fastener receiving end. Rotation of the inner tube pushes a lowermost portion of the inner tube against the fingers, pushing them into the deep well chamber and around an irregularly shaped bolt or nut style fastener, gripping the fastener and allowing a user to remove or reinstall the fastener. The fingers self-adjust around 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 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 tool for removing a stud includes a housing, a cage and a canted coil spring. The housing has an interior sidewall with a three-lobed cam and a groove. Each lobe has a counterclockwise cam inner surface and a clockwise cam inner surface on the opposite side of the lobe center line. The cage has a top surface, a tapered terminus and a groove disposed between the top surface and the tapered terminus. The cage includes jaws, in which the jaw outer cam surface of each jaw interfaces with the cam inner surface of the interior sidewall. The canted coil spring rotatably couples the cage to the housing. During stud removal, the housing rotates counterclockwise relative to the cage and the cage rotates counterclockwise to engage the stud.

An apparatus, an adjustable tool with variable diameter aimed at tightening and twisting nuts, bolts or other prismatic objects, with polygonal section or circular section outlines suitable for performing several actions around different kinds of objects, working on such objects through two different ways to move a variable number of teeth, which, while working, close like a diaphragm around the sides of such objects, perfectly adapting to their diameter and their section or capacity.