The present invention is an adjustable weight dead blow hammer comprising a hollow head filled with an acceptable fill material. A handle is connected to the head wherein the handle has a hollow chamber that traversers the length of the handle and has an opening into the head. The weight of the hammer head may be adjusted by moving the fill material between the head and the hollow chamber in the handle. Adjustment may be accomplished by a corkscrew device which is disposed within the hollow chamber and having a screw tip at the opening and c screw head on an outside portion of a bottom end of the handle. The corkscrew device within the hollow chamber moves the fill material between the head and the handle. More fill material in the head increases the force of impact, and less fill material in the head decreases the force of impact.

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 striking tool includes an elongated handle having a first end and a second end. The head is attached to or formed integrally with the first end of the handle and defines a striking portion, a claw portion, and a body portion therebetween. The striking tool may have slots, notches, and/or cavities configured to engage fasteners or other objects for applying torsion thereto. A striking member may be removably attached to the striking portion of the head, which may define a nail puller. Attachments, such as an axe head, may be removably attachable to the head of the striking tool.

An electric hand-held power tool, in particular a hammer drill and/or chipping hammer, having an electropneumatic impact mechanism which has a transmission housing, a guide tube arranged at least partially in the transmission housing, an exciter piston that is movable in an axial direction in the guide tube, a connecting rod coupled to the exciter piston, and an eccentric wheel which is coupled to the connecting rod on one side and is mounted so as to be rotatable with respect to the transmission housing via an end plate of the transmission housing on the other side, wherein the transmission housing is subdivided at least into a main shell and a cover shell separate from the main shell, such that the guide tube is braced against the main shell at least partially by the cover shell.

A body of an impact unit, an impact unit and a method of forming a body of an impact unit is disclosed. The body can be an elongated hollow piece including at least two body parts. The body parts are arranged successively in an axial direction of the body and are connected to each other by axial connecting joints. The connecting joints include several slanted fastening screws for connecting the body parts together.

A hammer assembly has a guiding unit, an impacting block, and a fastening assembly. The guiding unit is elongated and has a body, a limiting portion, and a limiting unit. The body has a first end and a second end opposite the first end of the body. The limiting portion is disposed at the first end of the body. The limiting unit is disposed closely to the second end of the body. The impacting block is movably mounted around the body of the guiding unit and blocked by the limiting portion and the limiting unit of the guiding unit. The fastening assembly has a fastening seat connected with the second end of the body. The fastening seat has a positioning structure for fastening a tent peg. The positioning structure may be a receiving recess or a threaded hole.

In one example, a system includes a hammer extender having a head formed from an upper layer, a lower layer and a side layer. The hammer extender includes an elongated body portion having a solid core elongated portion and a hollow core elongated portion. One end of the solid core elongated portion is connected to the head, and the other end is connected to the hollow core elongated portion. The hollow core elongated portion can receive and guide a nail during impact. The system may include a hammer having a hammer handle with a hollow interior to store the hammer extender.

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, 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.

A tool unit including a handheld power tool and a side handle mechanically connected to the power tool, wherein the side handle has a threaded rod. The power tool has an undercut groove delimited by a groove bottom, and the side handle has a channel nut engaging the undercut groove, wherein the channel nut has a threaded hole, wherein the threaded rod of the side handle is threadedly engaged in the threaded hole of the channel nut and acts against the groove bottom of the undercut groove. Side handles and power tools for use in such a tool unit are also provided.

The present invention is an adjustable weight dead blow hammer comprising a hollow head filled with an acceptable fill material. A handle is connected to the head wherein the handle has a hollow chamber that traversers the length of the handle and has an opening into the head. The weight of the hammer head may be adjusted by moving the fill material between the head and the hollow chamber in the handle. Adjustment may be accomplished by a corkscrew device which is disposed within the hollow chamber and having a screw tip at the opening and c screw head on an outside portion of a bottom end of the handle. The corkscrew device within the hollow chamber moves the fill material between the head and the handle. More fill material in the head increases the force of impact, and less fill material in the head decreases the force of impact.