A wrench includes a first part, a second part and a third part. The first part has a first toothed portion and a first pivotal portion. The second part has a third pivotal portion which is connected to the first pivotal portion so that the second part is pivoted an angle relative to the first part about the first pivotal portion. The third part is movably connected to the second part and has a second toothed portion which faces the first toothed portion so that objects of different sizes are clamped between the first and second toothed portions.

An oil core wrench includes a oneway control unit, a wrench unit and a rotation handle. The wrench unit includes a threaded rod, an adjusting member, a base member and a clamping member. The oneway control unit is mounted in the base member and includes a control member. Thus, the oil core is clamped between the clamping member of the wrench unit and the control member of the oneway control unit so that the wrench unit can drive the oil core to rotate successively in a oneway manner by operation of the oneway control unit, so as to tighten or loosen the oil core easily and quickly. In addition, the oil core wrench can be operated in a narrow or small working region.

A tong assembly for manipulating tubulars can include a tong arm assembly for makeup and breakout that has a floating jaw or non-moving jaw, a breakup arm, and a hydraulic control assembly. The tong assembly can include a remote control for remotely controlling operations and providing for improved safety.

A rig with a tong assembly for manipulating tubulars can include a tong arm assembly for makeup and breakout of tubulars that has a floating jaw or non-moving jaw, a breakup arm, and a hydraulic control assembly. The tong assembly can include a remote control for remotely controlling operation of the tong assembly for improved safety.

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.

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.

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.

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.

Air Suspension Wrench Comprises. a recycled cut to length, cam belt (60), held at the fixed end (63) against the spacer plate (50) by locking pins (70) within cam belt cog recesses (62). The cam belt (60) encompasses the workpiece cylindrical surface (81), the cam belt cog protrusions (61) facing outwards. The cam belt free end (64) when engaged, is drawn inwards into the drive unit (20) by the rotation of the drive unit axle (30) having corresponding output drive cog (33) protrusions on its periphery and an input drive recess (32) within its centre, securing the cam belt inner drive surface (65) upon the workpiece (80) until it can tighten no longer, all further drive torque DT used to turn the workpiece. Reversing the drive unit axle (30) allows repositioning. The end plate elongate curved contact surface (407) and extended first and second ends (405, 406) preventing cogling during use and a demountable rotational pin (71). aiding both cam belt (60) fitment and ensuring that at least four cam belt cog protrusions (61) are engaged.

Air Suspension Wrench Comprises. a recycled cut to length, cam belt (60), held at the fixed end (63) against the spacer plate (50) by locking pins (70) within cam belt cog recesses (62). The cam belt (60) encompasses the workpiece cylindrical surface (81), the cam belt cog protrusions (61) facing outwards. The cam belt free end (64) when engaged, is drawn inwards into the drive unit (20) by the rotation of the drive unit axle (30) having corresponding output drive cog (33) protrusions on its periphery and an input drive recess (32) within its centre, securing the cam belt inner drive surface (65) upon the workpiece (80) until it can tighten no longer, all further drive torque DT used to turn the workpiece. Reversing the drive unit axle (30) allows repositioning. The end plate elongate curved contact surface (407) and extended first and second ends (405, 406) preventing cogling during use and a demountable rotational pin (71). aiding both cam belt (60) fitment and ensuring that at least four cam belt cog protrusions (61) are engaged.