Provided is a bolting tool that includes a mounting portion and a torque transfer portion. A bolt assembly is mounted to the mounting portion. The bolt assembly includes a bolt and a nut threaded onto a position along an external threaded portion of the bolt. The torque transfer portion transfers tightening torque to the bolt and the nut of the bolt assembly mounted to the mounting portion. The mounting portion includes a bolt engagement portion, which is engageable with a head of the bolt, a nut engagement portion, which is engageable with the nut, and a coupling portion, which couples the nut engagement portion to the bolt engagement portion coaxially and with a predetermined spacing therebetween.

A method of coupling or decoupling a tool of a rotary-drive sub-assembly and a tool retainer of the rotary-drive sub-assembly includes rotationally anchoring the tool to a first tool-change member, rotatably coupled to a base, by engaging a tool-change-engagement portion of the tool with a first tool-engagement portion of the first tool-change member. The method also includes causing relative rotation between the tool and the tool retainer.

A dual fastener manipulation device may be used to manipulate two fasteners, having the same rotational axis, which may be separated by various distances and various sized objects. The dual fastener manipulation device may include a first wrench having a first fastener engaging head, a first handle, and a pivot stud. A second wrench element may have a second fastener engaging head and a second handle. A pivot linkage may be pivotally coupled to the pivot stud, and a floating stud may be coupled to both the second wrench and to the pivot linkage. The first and second fastener engaging heads may be engaged to two fasteners having the same rotational axis, while the pivot linkage and floating stud may maintain the rotational axis of the fastener engaging heads, while also allowing the fastener engaging heads to be moved closer to or farther from each other.

A method of threadably coupling a first fastener with a second fastener using a rotary drive including a tool. The method includes rotationally anchoring the second fastener relative to the tool. The first fastener is received within a socket of the rotary drive co-axially with a fastener-engagement portion of the tool. The first fastener is rotated with the socket relative to a housing of the rotary drive to cause the first fastener to threadably engage the second fastener. When the first fastener is rotated relative to the housing and while the fastener-engagement portion is mated with a receiving portion of the second fastener, the fastener-engagement portion is co-axially translated relative to a tool-change-engagement portion of the tool and relative to the socket so that a fastener-engagement indicator, coupled with the fastener-engagement portion, extends past a surface of a tool retainer, coupled to the tool-change-engagement portion.

It is supposed that N is defined as an optional natural number equal to or more than 3. A key wrench has a key section 5-2 engageable with a socket 2 of an N-sided polygon, and a proximal section 5-1. The key section 5-2 has N side surfaces that contain a first side surface 50-1, a second side surface 50-2 and an N.sup.th side surface 50-N. The first side surface 50-1 is a tapered surface, and the N.sup.th side surface 50-N is a non-tapered surface. Thus, the key wrench is provided to restrain a transformation of the surface of the socket and a generation of an excessive cam out load.

A tool for rotating a first component of an assembly relative to a second component of the assembly is disclosed. The tool comprises a ring support, a first wrench, coupled to the ring support, a worm ring, rotationally coupled to the ring support, a second wrench, coupled to the worm ring, and a worm screw, rotationally coupled to the ring support and in mesh with the worm ring.

A wrench assembly comprising an upper clamp assembly, a lower clamp assembly coupled to the upper clamp assembly, and an alignment device disposed between the upper and lower clamp assemblies to allow the upper clamp assembly to move laterally relative to the lower clamp assembly when rotated relative to the lower clamp assembly.

A rotary-drive sub-assembly includes a tool and a tool retainer. The tool includes a fastener-engagement portion, a first threaded portion, and a tool-change-engagement portion between the fastener-engagement portion and the first threaded portion. The tool retainer includes a body and a retaining member. The body includes a symmetry axis, a second threaded portion, configured to be threadably fastened with the first threaded portion of the tool so that the tool is rotationally anchored relative to the body of the tool retainer about the symmetry axis and is translationally anchored relative to the body of the tool retainer along the symmetry axis, and a key, fixed relative to the second threaded portion. The tool retainer further includes a retaining member that is removably coupled to the body at a fixed location.

A dual fastener manipulation device may be used to manipulate two fasteners, having the same rotational axis, which may be separated by various distances and various sized objects. The dual fastener manipulation device may include a first wrench having a first fastener engaging head, a first handle, and a pivot stud. A second wrench element may have a second fastener engaging head and a second handle. A pivot linkage may be pivotally coupled to the pivot stud, and a floating stud may be coupled to both the second wrench and to the pivot linkage. The first and second fastener engaging heads may be engaged to two fasteners having the same rotational axis, while the pivot linkage and floating stud may maintain the rotational axis of the fastener engaging heads, while also allowing the fastener engaging heads to be moved closer to or farther from each other.

A tool (100) for rotating a first component (210) of an assembly (200) relative to a second component (220) of the assembly (200) is disclosed. The tool (100) comprises a ring support (130), a first wrench (110), coupled to the ring support (130), a worm ring (140), rotationally coupled to the ring support (130), a second wrench (120), coupled to the worm ring (140), and a worm screw (150), rotationally coupled to the ring support (130) and in mesh with the worm ring ().