A tool-holding device (11) for holding a tool (13) on a work machine with a retaining unit (20) and with a lock unit (30). The lock unit (30) can be transferred from a receiving position into a fixing position, and the retaining unit (20) comprises a receiving section (21) for holding the lock unit (30) at least in sections. The lock unit (30) comprises a tool-holding section (33) for holding a tool (13) in a pre-positioned manner. A work machine with this tool-holding device and a method for positioning a tool (13) on a work machine are also disclosed.

A tool-holding device (11) for holding a tool (13) on a work machine with a retaining unit (20) and with a lock unit (30). The lock unit (30) can be transferred from a receiving position into a fixing position, and the retaining unit (20) comprises a receiving section (21) for holding the lock unit (30) at least in sections. The lock unit (30) comprises a tool-holding section (33) for holding a tool (13) in a pre-positioned manner. A work machine with this tool-holding device and a method for positioning a tool (13) on a work machine are also disclosed.

The present application discloses a pneumatic chipping hammer, and relates to a pneumatic impact tool, which comprises a handle part, the handle part being a hollow member; a main power part, one end of the main power part being connected to the handle part, and principal axes of the handle part and the main power part forming a certain angle; and a chisel part, the chisel part being detachably connected to the other end of the main power part, wherein the direction of mounting the chisel part on the main power part can be changed. According to the pneumatic chipping hammer of the present application, the mounting direction of the chisel part on the main power part is changed by the locking member, and therefore the angle between the principal axes of the handle part and the main power part can be 5-85 degrees, so that a handle is inclined to further achieve different purposes and be suitable for people with different heights.

The present application discloses a pneumatic chipping hammer, and relates to a pneumatic impact tool, which comprises a handle part, the handle part being a hollow member; a main power part, one end of the main power part being connected to the handle part, and principal axes of the handle part and the main power part forming a certain angle; and a chisel part, the chisel part being detachably connected to the other end of the main power part, wherein the direction of mounting the chisel part on the main power part can be changed. According to the pneumatic chipping hammer of the present application, the mounting direction of the chisel part on the main power part is changed by the locking member, and therefore the angle between the principal axes of the handle part and the main power part can be 5-85 degrees, so that a handle is inclined to further achieve different purposes and be suitable for people with different heights.

The present disclosure is directed to a power tool adapted to impart axial impacts to a tool bit. The power tool includes a housing, an electric motor, and a barrel. The power tool also includes a reciprocation drive assembly coupled to the electric motor and configured to convert torque from the electric motor to reciprocating motion of a piston that is received within the barrel for reciprocation therein. The power tool further includes a striker received within the barrel for reciprocation in response to reciprocation of the piston, and an anvil received within the barrel between the striker and the tool bit. The anvil is configured to communicate axial impacts to the tool bit in response to reciprocation of the striker. The anvil defines an opening and an inner bore that communicates with the opening, and the inner bore at least partially receives a shank of the tool bit.

A driver for a nail anchor includes an elongate tool body having a driven end and an opposite nail-driving end. The nail-driving end includes a convexly rounded end of the tool body enabling the driver to drive a nail even when not axially aligned with the nail. The nail-driving end also includes a skirt portion extending around the rounded end to limit lateral displacement of the nail-driving end of the tool body relative to a head of the nail as the driver drives the nail.

A driver for a nail anchor includes an elongate tool body having a driven end and an opposite nail-driving end. The nail-driving end includes a convexly rounded end of the tool body enabling the driver to drive a nail even when not axially aligned with the nail. The nail-driving end also includes a skirt portion extending around the rounded end to limit lateral displacement of the nail-driving end of the tool body relative to a head of the nail as the driver drives the nail.

A power tool, in particular a chipping hammer, containing a tool-fitting element for receiving and holding a tool, in particular a chisel, and an apparatus for selectively turning the tool-fitting element. The apparatus contains an impact-mechanism housing having a connecting device, a coupling element having an attachment device, and an uncoupling element for reversibly separating the coupling element from the impact-mechanism housing, wherein the coupling element is settable reversibly in a first or second position, and wherein, in the first position, the coupling element is connected releasably to the impact-mechanism housing such that the tool-fitting element is prevented from turning about an axis of rotation and, in the second position, the coupling element is movable relative to the impact-mechanism housing such that the tool-fitting element is able to be turned about an axis of rotation relative to the impact-mechanism housing.

A power tool, in particular a chipping hammer, containing a tool-fitting element for receiving and holding a tool, in particular a chisel, and an apparatus for selectively turning the tool-fitting element. The apparatus contains an impact-mechanism housing having a connecting device, a coupling element having an attachment device, and an uncoupling element for reversibly separating the coupling element from the impact-mechanism housing, wherein the coupling element is settable reversibly in a first or second position, and wherein, in the first position, the coupling element is connected releasably to the impact-mechanism housing such that the tool-fitting element is prevented from turning about an axis of rotation and, in the second position, the coupling element is movable relative to the impact-mechanism housing such that the tool-fitting element is able to be turned about an axis of rotation relative to the impact-mechanism housing.

A tool bushing of a breaking hammer, a tool bushing arrangement, a breaking hammer and a method of mounting a tool bushing of a breaking hammer are disclosed. The tool bushing is a sleeve-like piece having a multi-shouldered outer surface with three or more successive cylindrical portions. The cylindrical portions have different diameters that match with corresponding surfaces of a bushing housing when the tool bushing is mounted. Diameters of the bushing and the bushing housing are dimensioned so that friction forces are generated when the bushing is assembled.