The invention comprises an adjustable box wrench that can provide a more accurate grasp and/or sufficient grip/contact with the faces of the head of a bolt, nut, and/or similarly related objects. The invention comprises a series of pins and links which form a loop within a hollow body and are folded onto each other to form a tight gripping surface at the wrench's box ends. The invention may also contain slide-switches and/or scroll knobs to help actuate link closure or guide links within the chamber of the body until the desired set of links is within a box end.

The invention comprises an adjustable box wrench that can provide a more accurate grasp and/or sufficient grip/contact with the faces of the head of a bolt, nut, and/or similarly related objects. The invention comprises a series of pins and links which form a loop within a hollow body and are folded onto each other to form a tight gripping surface at the wrench's box ends. The invention may also contain slide-switches and/or scroll knobs to help actuate link closure or guide links within the chamber of the body until the desired set of links is within a box end.

An apparatus for manually impaired individuals. The apparatus includes a top element having a base and at least two pairs of arms extending outwardly from the base. The base includes a first aperture and a second aperture. The apparatus further includes a handle connecting to the top element at a distal end of the top element. The handle includes an end part. The end part includes a third aperture and a slot connected by a V shaped portion. The apparatus further includes a restraint having a first end securing at an interior of the handle via the first aperture of the base and a second end of the restraint exposed outside the handle.

A chain wrench which utilizes ordinary high-speed drive chain to form an adjustable, replaceable chain wrench of unlimited length potential. A sprocket for gripping at the head of the wrench, and allows the chain to nearly completely wrap about the object to be turned or held, preventing the need for a gripping portion which tends to damage or crush the object being turned or held. Multiple such chains could be used simultaneously.

A chain wrench which utilizes ordinary high-speed drive chain to form an adjustable, replaceable chain wrench of unlimited length potential. A sprocket for gripping at the head of the wrench, and allows the chain to nearly completely wrap about the object to be turned or held, preventing the need for a gripping portion which tends to damage or crush the object being turned or held. Multiple such chains could be used simultaneously.

A reaction torque limiting backup wrench arrangement (1) has at least one fastener engaging means e.g. spanner (6) or socket (170), for a pressure boundary bolted joint nut (5) of a respective fastener (3). The backup wrench arrangement provides a reaction torque up to a threshold above which rotation allowed by motion of the fastener engaging means is determined by a magnitude of the reaction torque and force deflection characteristic of a biasing arrangement acting directly or indirectly on the fastener engaging means. Tension in the flexible tension element e.g. chain (7) urges the spanner (6) onto the nut (5) of the fastener permitting the spanner to displace when torque transmitted through a bolt to the nut or bolt head within the spanner exceeds a threshold torque, enabling the nut or bolt head to rotate, helping prevent bolt over-tightening, and helping indicate the bolt seizing or galling.

A reaction torque limiting backup wrench arrangement (1) has at least one fastener engaging means e.g. spanner (6) or socket (170), for a pressure boundary bolted joint nut (5) of a respective fastener (3). The backup wrench arrangement provides a reaction torque up to a threshold above which rotation allowed by motion of the fastener engaging means is determined by a magnitude of the reaction torque and force deflection characteristic of a biasing arrangement acting directly or indirectly on the fastener engaging means. Tension in the flexible tension element e.g. chain (7) urges the spanner (6) onto the nut (5) of the fastener permitting the spanner to displace when torque transmitted through a bolt to the nut or bolt head within the spanner exceeds a threshold torque, enabling the nut or bolt head to rotate, helping prevent bolt over-tightening, and helping indicate the bolt seizing or galling.

Infiltrated diamond bodies for use in gripping drill rods and other tubulars. One example of such an infiltrated diamond body is a cast diamond roller having a plurality of pads that are separated by channels. Another example of such an infiltrated diamond body is a cast wrench jaw having at least one raised jaw pad.

An adjustable shock absorber system includes: a coil over shock absorber with a spring and an adjustment ring; an adjustment ring assembly, which detachably interlocks with the adjustment ring; and a shock adjuster tool with a lever arm and a tool grip portion, including a band assembly; such that the tool grip portion detachably connects to a peripheral mounting surface of the adjustment ring assembly; whereby the shock adjuster tool can be used to adjust a preload of the coil-over shock absorber.

An adjustable shock absorber system includes: a coil over shock absorber with a spring and a lockable adjustment ring; a protective cover assembly, optionally including top and bottom cover portions; a shock adjuster tool with a lever arm and a tool grip portion, including a band assembly, and a tool attachment assembly, including a connector member and a tool member; such that the tool grip portion detachably connects to the peripheral mounting surface of the lockable adjustment ring; whereby the shock adjuster tool can be used to adjust a preload of the coil-over shock absorber. Alternatively, an adjustable shock absorber system includes: a coil-over shock absorber with a spring and an adjustment ring; an adjustment ring assembly, which detachably interlocks with the adjustment ring; and a shock adjuster tool with a lever arm and a tool grip portion, which detachably connects with the adjustment ring assembly.