A rotary hammer drill adapter. The rotary hammer drill adapter includes an elongated body having a shank end and a bit end. The bit end is disposed on an opposing end of the elongated body relative to the shank end. The shank end has a plurality of grooves disposed on opposing sides of the elongated body and a plurality of sliding keyways disposed on opposing sides of the elongated body. Each of the plurality of sliding keyways is disposed between a pair of the plurality of grooves. The bit end further includes an interface which is adapted to receive complementary bits.

A drill bit for chiseling stone includes an impact face at an insertion end of the drill bit, a hollow shank, where a delivery passage is defined within the hollow shank, and a drill head, where the drill head has, at a front end of the drill head, a cutting edge, an intake opening, and an intake passage. The intake passage connects the intake opening to the delivery passage. A cross section of the intake passage increases from the intake opening to the delivery passage.

A hammer drill adapter for driving a drive cleat to join opposed ends of a duct comprising: a first portion generally aligned in a plane; a shaft portion having an elongate axis generally parallel to said plane; the first portion fixed to the shaft portion; an entry surface at a distal end of the first portion; a capture cavity extending through the entry surface; the capture cavity defined proximally by a rear surface and by an opposed lower and upper capture surfaces; the capture cavity also laterally defined by an opposed first capture surface and a second capture surface; the capture cavity sized to house a trailing end portion of a drive cleat; and wherein the shaft portion comprises a connection portion at a proximal end of said shaft portion for fixation within a hammer drill chuck. Also disclosed are methods for use to advance a drive cleat.

A tool bit to be installed on a pneumatic air hammer, the tool bit including a rod, a handle disposed on a predetermined portion of the rod, an insertion portion disposed at a first end of the rod to be fit into an attachment portion of the pneumatic air hammer, and a tip disposed at a second end of the rod.

An improved hammer drill adapter, that is to be inserted into the variable-diameter, chuck end of a hammer drill for driving forward any one of a plurality of different types of sheet metal cleats to join the opposing ends of two sheet metal, duct sections, includes: (a) an elongated shaft having a drive end and a working end and a centerline between said ends, (b) the drive end configured to be releasably held in the hammer drill's chuck, (c) the working end having an elongated flat, front face that has top and bottom surfaces, two ends and with the front face oriented so that a perpendicular to the front face is parallel to the shaft's centerline, (d) the front face has an elongated cavity and a front face channel that are oriented approximately perpendicular to each other, and (e) wherein this cavity is configured to accommodate within it the end of a flat drive cleat, and the cavity and front face channel together are configured to accommodate within them the end of a standing drive cleat.

Systems and methods for management of material stresses present at transitions between facets of an anvil and the anvil shaft are described. In one aspect, an apparatus includes an impact tool anvil extending along an axis of extension and having a faceted drive end and a shaft body which is connected to the faceted drive end through a transition region that couples respective faces of the faceted drive end to the shaft body, the transition region including a sweeping radius surface having a first axial end and a second axial end, the first axial end connected to a respective face of the faceted drive end, the first axial end having a tangency with the respective face of the faceted drive end; and an angular transition having a slope that radially rises from the second axial end of the sweeping radius surface to the shaft body.

A method for the production of a tool receiving device is disclosed. The method includes positioning at least one sleeve with at least one driving web on an outer circumferential surface of at least one component of a forming tool, inserting the at least one component of the forming tool into a cylindrical bore of the tool receiving device such that an outer circumferential surface of the sleeve bears on an inner circumferential surface of the tool receiving device, and exerting a force on the outer circumferential surface of the tool receiving device for forming the tool receiving device and for forming at least a partial region of the inner circumferential surface of the tool receiving device, on which bears the outer circumferential surface of the sleeve, so that a non-positive and positive locking connection is produced between the inner circumferential surface of the tool receiving device and the sleeve.

A hammer drill adapter for driving a drive cleat to join opposed ends of a duct comprising: a first portion generally aligned in a plane; a shaft portion having an elongate axis generally parallel to said plane; the first portion fixed to the shaft portion; an entry surface at a distal end of the first portion; a capture cavity extending through the entry surface; the capture cavity defined proximally by a rear surface and by an opposed lower and upper capture surfaces; the capture cavity also laterally defined by an opposed first capture surface and a second capture surface; the capture cavity sized to house a trailing end portion of a drive cleat; and wherein the shaft portion comprises a connection portion at a proximal end of said shaft portion for fixation within a hammer drill chuck. Also disclosed are methods for use to advance a drive cleat.

Disclosed herein is a post repair kit comprising a stake defined by a body, proximal end, and a tapered anchor end. The post repair kit comprises a hammer mechanism comprising a power portion and a reciprocating ram structure, the power portion forcibly driving the reciprocating ram structure in a reciprocating motion. The reciprocating ram structure comprises a rod structure having a proximal end coupled with the power portion. The reciprocating ram structure further comprises an offset member connected to a distal end of the rod structure. The offset member has a first hole and a second hole. The distal end of the rod structure is connected to the first hole, wherein the offset member and the rod structure are connected perpendicular to each other. The reciprocating ram structure further comprises an interchangeable adaptor end tool detachably connected to the offset member using a fastening mechanism at the second hole.