A clamp includes a jaw assembly, and an actuator device for moving the jaw assembly between clamped and unclamped positions. The actuator device includes a handle, and a keyed shaft coupled to the handle via a spring biased releasable torque transfer mechanism.

A clamp includes a jaw assembly, and an actuator device for moving the jaw assembly between clamped and unclamped positions. The actuator device includes a handle, and a keyed shaft coupled to the handle via a spring biased releasable torque transfer mechanism.

A panel support assembly is presented herein. The panel support assembly includes a support base, a fixed support structure and a swing arm assembly. The fixed support structure extends from the support base and defines at least one vertical panel engaging surface. The swing arm assembly is pivotally attached to the base and is disposable between a normally biased, at least partially raised position and a lowered, clamped position. The swing arm assembly includes a base, a swing arm panel and a pivoting pressure plate. A biasing device is attached to the base of the swing arm assembly and is configured to normally bias the swing arm assembly into the at least partially raised position until an opposing weight is applied to the base of the swing arm assembly that will oppose the biasing force and automatically position the swing arm assembly into the lowered clamped position.

A panel support assembly is presented herein. The panel support assembly includes a support base, a fixed support structure and a swing arm assembly. The fixed support structure extends from the support base and defines at least one vertical panel engaging surface. The swing arm assembly is pivotally attached to the base and is disposable between a normally biased, at least partially raised position and a lowered, clamped position. The swing arm assembly includes a base, a swing arm panel and a pivoting pressure plate. A biasing device is attached to the base of the swing arm assembly and is configured to normally bias the swing arm assembly into the at least partially raised position until an opposing weight is applied to the base of the swing arm assembly that will oppose the biasing force and automatically position the swing arm assembly into the lowered clamped position.

A workholding clamp for securing a workpiece to a work surface comprised of a fixed body secured to the work surface and having a first inclined surface; a sliding jaw having a second inclined surface residing against and parallel to the first inclined surface, a clamp face and at least one obround opening; and at least one clamping fastener residing within the at least one obround opening and being tightened to cause the second inclined surface to slide against the first inclined surface. A workholding pivot clamp for securing a workpiece to a work surface, and a work stop for reliably locating a workpiece relative to a work surface are also described.

A workholding clamp for securing a workpiece to a work surface comprised of a fixed body secured to the work surface and having a first inclined surface; a sliding jaw having a second inclined surface residing against and parallel to the first inclined surface, a clamp face and at least one obround opening; and at least one clamping fastener residing within the at least one obround opening and being tightened to cause the second inclined surface to slide against the first inclined surface. A workholding pivot clamp for securing a workpiece to a work surface, and a work stop for reliably locating a workpiece relative to a work surface are also described.

A method of installing a plurality of nut and bolt fasteners upon a structure is disclosed. The method includes placing a jig around the nut of a first fastener and the nut of a second fastener, securing the jig to the first fastener, and then using a power tool to tighten the nut of the second fastener to a target torque. The step of tightening the nut comprises engaging a socket portion of the power tool with the nut, securing the power tool to the jig such that a handle portion of the power tool is prevented from rotating about an axis of rotation of a socket portion of the power tool when the nut is being rotated by the socket portion. A jig, jig fasteners for securing a jig to a fastener, and a fastening head for a power tool are disclosed.

An apparatus having a clamp configured to move between an open position and a closed position. The clamp has an actuator, a head, a base, two or more arms, and two abutments. The actuator extends through the head and the base. The two or more arms are coupled to the head and the base. The two abutments abut each other when the clamp is in the closed position.

An apparatus having a clamp configured to move between an open position and a closed position. The clamp has an actuator, a head, a base, two or more arms, and two abutments. The actuator extends through the head and the base. The two or more arms are coupled to the head and the base. The two abutments abut each other when the clamp is in the closed position.

A ring for clasping a cylindrical object includes a first element, a second element and a switch mechanism. The second element is circumferentially butted with the first element, and one end of the first element is adjacent to one end of the second element. The end of the second element has a protrusion protruding outwardly. The switch mechanism includes an abutting member adjacent to the end of the first element and configured to be rotated to abut against or move away from the protrusion of the end of the second element. When the abutting member is rotated and abuts against the protrusion of the end of the second element, the second element is fixed; when the abutting member is rotated and moves away from the protrusion of the end of the second element, the second element is released.