The self-contained force magnifying tool disclosed herein includes a tool portion, a striker, at least a portion of which is disposed within the tool portion, and a spring, a least a portion of which is disposed within the tool portion. The spring attaches to both the tool portion and the striker. When the striker is pulled by a user, the spring stores mechanical energy. When the user releases the striker, the striker impacts on the tool portion transferring the mechanical energy stored in the spring into a driving force. The force is magnified by a tool disposed on the tool portion of the self-contained force magnifying hand tool and applied to a workpiece.

The present disclosure generally relates to quick change attachments for a pneumatic percussive tool. The attachments convert a pneumatic percussive tool, such as an air impact tool with proximal attachment means, which has a pushing force, into a pneumatic percussive tool having a pulling force. Once attached to the pneumatic percussive tool, the attachments also provide a quick change feature for allowing pulling tools to be simply and easily removed and replaced.

Certain exemplary embodiments can provide a hammer. The hammer comprises a head. The hammer further comprises a head cap. The head cap is releasably coupled the head via a threaded fastener. The hammer comprises a claw. The claw comprises two forks. At least one of the two forks defines a serrated edge. The serrated edge is constructed to grip a slick surface when pulling a nail with the claw from the slick surface.

A T-post puller with a channel providing a sliding fit over a T-post. The T-post puller when rotated relative to the T-post causes protrusions in the channel to engage the bottom of a T-post stud while a retractable member holds the T-post puller in stud engaging position. The T-post puller may be integrated with a T-post driver in a fencing tool including a drive tube for use in driving posts into the ground and for use as a slide hammer for extracting them from the ground.

Systems and methods can include stretching a stud of a hammer assembly by tightening, according to a preset amount, a plurality of fasteners, which can extend from a first end surface and/or a second end surface of a first nut threadedly coupled to the stud, against an upper surface of a body of the hammer assembly. The fasteners and the first nut can provide a clamping load for the stud upon completion of the tightening. The systems and methods can also include, after the stretching, tightening a second nut, which can be threadedly connected to the stud, toward a seat formed in the body of the hammer assembly; and further tightening the second nut, against the seat. The systems and methods can further include transferring the clamping load from the fasteners and first nut to the second nut.

A bushing assembly for a reciprocating device is provided. The bushing assembly includes a hollow bushing housing, a collet guide member, and an adjuster mechanism. The hollow bushing housing has a substantially cylindrical shape and an angled inner sidewall. The collet guide member is disposed radially inward from and contacts the angled inner sidewall of the hollow bushing housing. The adjuster mechanism contacts a lower surface of the collet guide member and urges the collet guide member along the angled inner sidewall of the hollow bushing housing.

A method of manufacturing a hydraulic hammer using a male gauge and a female gauge is provided wherein the hammer comprises a body and a chuck housing that are connectable by cooperatively formed thread fittings. A cooperatively threaded male gauge and female gauge can be used to form the threads on the body and the chuck housing and to determine the rotational orientation of the body and the chuck housing relative to one another. One of the gauges can be used to measure distortion of the chuck housing caused by heat treatment subsequent to the formation of the thread fitting and thereby to determine the required subsequent machining of the chuck housing necessary to retain the appropriate relative rotational orientation when the chuck housing is connected to the body. The method can comprise the steps of making and appropriately marking the male gauge and the female gauge.

A universal ball joint installation and removal tool kit for the purpose of service and repair or removal and installation of ball joint suspension components includes at least one tool assembly comprising a rod member having a first end and a second end, and a plurality of adapter members for mechanical attachment or engagement with respective ones of different sized ball joint suspension components. Each of the adapter members is configured to attach at the second end of the rod member. When servicing a ball joint suspension component, a selected adapter member is mechanically attached to a particular ball joint suspension component and attached at the second end of the rod member, which is used to install or remove the particular ball joint suspension component via a slidable weight along the rod member or pulling or pushing the rod member relative to the particular ball joint suspension component.

A tie rod for use with a powered hammer assembly is provided that includes a body that defines a first end that is configured as a torque end, a second end that is configured as a fastening connecting end, and a longitudinal axis that extends from the first end to the second end, and a bearing surface that is positioned proximate the torque end along the longitudinal axis and that defines a tangent to the surface that forms an oblique angle with the longitudinal axis.

The invention involves the extraction process of a glow plug pencil (23) or a broken pencil (23) which is stuck in a cylinder head (13) housing (11) of a glow plug engine comprising a lower (19) and upper (17) part, so that the upper part (17) forms a shoulder (21) with the lower part (19), the pencil (23) being stuck in the lower part (19). The process is remarkable in that it includes a step (a) for drilling a bore in the pencil (23) according to the longitudinal direction of the latter which is performed with the use of a drill bit (1) comprising a drilling part (5) with flutes (7) and a shank (3) respectively having a diameter smaller and greater than the lower part diameter (19) of the housing (11) so that the shank (3) forms a shoulder (9) with the drilling part (5), and in that step a) for drilling the bore includes the drilling of the pencil (23) until the said shoulder (9) of the drill bit (1) is positioned to a stop against the shoulder (21) of the housing (11).