A Special Powered Rivet Cutter for removing riveted fasteners that is made of durable and lightweight material, the cutter includes a pair of cutting jaws with cutting edges, two pivot apertures, and a power connection aperture; a top and bottom plate each with apertures over the pivot apertures; a pair of pivot pins washers and retainer nuts, to pivotally fasten the pins through the top and bottom plates and through each of the first jaw and opposite jaw, to the jaws and washer; and a pair of power pins connected to each other by a pair of span units with left and right handed fine threads and the pair of span units engaged with an externally threaded driver bar so the driver connection is driven by a power drive unit to engage the cutting edges with a rivet and to shear the rivet at the point of engagement.

The present invention provides an opening-closing device including a first component, a second component and a third component. The second component is rotatably connected with the first component, and the third component is rotatably connected with the second component. The present invention further includes a mode switching device for switching operating modes of the opening-closing device. The operating modes include a conventional mode and a labor-saving mode. When the opening-closing device is in the conventional mode, the third component is fixed relative to the second component. When the opening-closing device is in the labor-saving mode, the third component is rotated in the opening direction relative to the second component during opening of the opening-closing device, and the third component is rotated in the closing direction relative to the second component during closing of the opening-closing device.

A tool is provided, the tool including a handle, a tool head, a first gear, a compound gear, a shaft, and an actuating member coupled to the shaft. The handle extends along a longitudinal direction. The tool head is configured to receive a motive force to selectively engage or disengage the tool head. The first gear is operably coupled to the tool head. The compound gear is selectively coupled to the first gear. The shaft extends through the compound gear and is affixed to the shaft. The actuating member is coupled to the handle. Movement of the actuating member along the longitudinal direction selectively engages or disengages the compound gear and the first gear.

A multi-link cutting tool used to cut wire, pipe, cable, tube, chain and the like. The cutting tool utilizes a multi-link connecting linkage between the cutting jaw and the handles to increase the leverage obtained at the cutting edge, to control the relative motion of the jaws, and/or use to control the motion of the cutting edge. With this multi-link connecting mechanism, a smaller and more powerful cutting tool can be made.

A multi-link cutting tool used to cut wire, pipe, cable, tube, chain and the like. The cutting tool utilizes a multi-link connecting linkage between the cutting jaw and the handles to increase the leverage obtained at the cutting edge, to control the relative motion of the jaws, and/or use to control the motion of the cutting edge. With this multi-link connecting mechanism, a smaller and more powerful cutting tool can be made.

A light-weight bolt cutter tool includes a pair of opposing pivotally mounted jaws, each made from a fiber-reinforced composite body jacketed by a blade having a hardened metal outer surface oriented to forcibly engage the other one of said jaws. The bolt cutter tool can be actuated by a pair of elongated, hollow fiber resin composite handles. Each handle can include an elastomeric damping plug to prevent debris entering the hollow handle and reduce material fatigue. A quick-deployment, quiver-style backpack can conveniently carry the colt cutters when not in use.

A light-weight bolt cutter tool includes a pair of opposing pivotally mounted jaws, each made from a fiber-reinforced composite body jacketed by a blade having a hardened metal outer surface oriented to forcibly engage the other one of said jaws. The bolt cutter tool can be actuated by a pair of elongated, hollow fiber resin composite handles. Each handle can include an elastomeric damping plug to prevent debris entering the hollow handle and reduce material fatigue. A quick-deployment, quiver-style backpack can conveniently carry the colt cutters when not in use.

A cutter comprises one or more blades, a hinge coupled to the blades, and one or more adjustable handles pivotally coupled to the hinge. When being adjusted, the one or more adjustable handles permit adjusting their positions with respect to the opposing handle without concurrently actuating the blades.