Dental tools and methods for at least one of seating, insertion and removal of one or more components of dental attachment assemblies are described herein. The dental tools comprise an elongate member, an expandable grabber positioned around at least a portion of the elongate member, and an adjustment mechanism. The elongate member comprises an expander, which can have different widths or diameters along its length such that an adjustment of a position of the expandable grabber relative to the elongate member via the adjustment mechanism adjusts a width or diameter of at least a portion, preferably an end portion, of the expandable grabber.

A ratchet wrench including a bicycle toolset combined therewith includes a main body having a first end including a ratchet drive head and a second end including an accommodating cavity. A toolset in a combination configuration is detachably connected to the main body and includes a length disposed in the accommodating cavity. The toolset comprises at least one bicycle tool.

A multi-tool includes a pair of plates having respective handle portions, joint portions, and head portions, with the plates pivotally connected to each other at the joint portions, and to be pivoted relative to each other to establish an open position and a closed position of the plates. A bit holder is extended from an end of one of the plates, with the bit holder including a socket to receive an insert bit, the handle portion of the one of the plates including a storage area to receive and store the insert bit, and, in the closed position of the plates, the plates to overlap each other with the handle portion of the other of the plates to cover the storage area and the handle portion of the one of the plates.

A joint dismounting tool is provided, including a frame body and a pulling assembly. The frame body includes a base portion and two arm portions, and the two arm portions are disposed on the base portion. The pulling assembly includes a driving rod and a cup member, the driving rod is movably disposed on the base portion, the cup member is connected to the driving rod and swingable relative to the axis, and the cup member is between the two arm portions.

A removing apparatus includes a main body, an operation member, and two connection members. The main body has a main arm, and a first and second side arms on two ends, so as to form a C shape, with a combination bore on one end of one side arm away from the main arm. The operation member is on another side arm and axially movable, with another combination bore on one end of the operation member. Each connection member has a base portion, with an insertion portion extending from the one lateral side of the base portion to be combined with the combination bore. Each connection member has a large and a small column portions connected in a stage shape to form a stage face. Sleeves of different sizes can be combined with the lateral side or the stage face of the connection member for removing objects.

Tool for installing O-rings in an inner diameter of a structure includes a plurality of held in a spaced, fixed parallel relationship to one another. A plurality of guide surfaces are secured with and disposed between the plates. A selectively-actuable finger actuator is disposed to move a plurality of fingers generally radially between the plurality of plates. Each of the plates includes a slot, and a loading pin is configured to be received within the slots. When at least one O-ring is disposed about a plurality of guide surfaces proximal the periphery of the plates, and the loading pin is moved within the slots, the loading pin pulls a loop of the O-rings toward the plate axis. When the loading pin is removed, the finger actuator may be actuated to move the fingers in the generally radial direction to move the at least one O-ring radially outward from the plates.

A gear puller assembly includes a yoke that defines a plurality of puller arm receiving interfaces, a threaded jack shaft threadably received through the yoke and having a pressing surface on an end thereof, and a plurality of puller arms, wherein each respective puller arm is configured for being selectively engageable with a respective puller arm interface of the yoke. A detent assembly extends from the yoke through each of the puller arm receiving interfaces, each of the detent assemblies configured for engagement with respective puller arms to cause the puller arm to maintain a locked position defined at an angle between the respective puller arms and the yoke.

A tool for spreading a vehicle suspension spring, the tool incorporating a base having upper and lower ends; upper and lower arms, each such arm having a proximal end and a distal end, the upper arm's proximal end being pivotally attached to the base's upper end and the lower arm's proximal end being pivotally attached to the base's lower end, and each arm's distal end being adapted for engaging the spring; a screw mounted rotatably upon the base, the screw extending distally between the upper and lower arms; and a nut threadedly mounted upon the screw, the nut having upper and lower ends adapted for slidably engaging the upper and lower arms, the nut being kinetically spinnable for longitudinally repositioning between the upper and lower arms.

A tool configured for use to assemble and install trim into a steam conditioning valve. These configurations can include a device that mounts in place of a bonnet and an actuator that technicians remove from the valve. The device can cantilever the trim assembly, essentially providing a platform on which technicians can slide the trim assembly into the valve body (or out of the valve body) to complete install or repair of the device. As an added benefit, technicians can also use the device to assemble the trim in proximity to the subject valve.

Embodiments of the present disclosure provide an apparatus and method for mounting an O-ring to a work piece. The apparatus comprises a guiding component comprising a frustum portion arranged coaxially with a groove formed on an end surface of the work piece for receiving the O-ring, a large end face of the frustum portion arranged adjacent to the end surface; and an operation component adapted to drive the guiding component to rotate back and forth about a central axis of the guiding component, wherein a diameter of the large end face is substantially same as an inner diameter of the O-ring to allow the O-ring surrounding and eccentric to the frustum portion to slide into the groove with a rotation of the guiding component.