A tool holder system with first and second spindles, a locking ring slideably mounted on the first spindle, a first biasing mechanism biasing the locking ring towards an indentation position where the locking ring surrounds an indentation on the first spindle, and a moveable locking element mounted on the second spindle, the locking element being engageable to the indentation. The first spindle can be unlocked from the second spindle by sliding the locking ring away from the indentation position against the biasing force of the biasing mechanism and towards the second spindle. Such action moves the locking element to disengage from the indentation.

A production method for a tool socket includes forming a hollow spindle An elongated recess is provided in the wall. The spindle includes unalloyed or low-alloyed steel grades. An insert includes a high-alloyed tool steel. The insert has a pedestal that is complementary to the recess and it also has a rib. The insert is placed into the hollow spindle in such a way that the pedestal rests in the recess and the rib projects into the interior of the spindle. The pedestal is soldered into the recess at a temperature that is above the Ac3 temperatures of the steel grades employed. The combined structure is cooled and then undergoes a heat treatment in an atmosphere containing sufficient carbon to carburize the hollow spindle but not sufficient to carburize the insert. The heat treatment of the combined structure is carried out at a temperature between 800 C. and 950 C. The combined structure is cooled down in a salt bath or liquid bath subsequent to the heat treatment.

A method and device for setting expansion anchors that includes an elongate rod having a proximal end, a center section, and a distal end. The proximal end and the center section can have an effective diameter of a given expansion anchor. The distal end can have a reduced effective diameter to fit inside the open center space of the given expansion anchor.

A tool socket 2 for a hand-held power tool has a tubular main body 17 and a dust cap 27. The main body 17 has an end face 19 that is adjoined by a cylindrical or prismatic outer surface 36. As seen in the insertion direction 20, the dust cap 27 consecutively has a sealing ring 28, a middle section 29 and a seat 30. As seen in the insertion direction 20, the sealing ring 28 is arranged in front of the end face 19 of the main body 17. The seat 30 has a cylindrical or prismatic inner surface 35 that is in contact with the outer surface 36 of the main body 17. The middle section 29 has a conical inner surface 39 whose inner diameter 40 decreases in the insertion direction 20 down to the inner diameter 37 of the seat 30.

A drilling tool configured to operate in two drilling modes, respectively with and without hammer action, said tool comprising a front end equipped with a rotating part for mounting a drill bit by way of an SDS-type push-fitting, characterized in that said rotating part comprises a mechanism for the removable attachment to a first longitudinal end of a tubular extension, this tubular extension being configured to extend along and around a drill bit mounted in the rotating part and comprising a second longitudinal end configured to bear at least one screw-driving element, such that the tool can be used for a screw-driving operation even when it is equipped with the drill bit.

In a hand-held machine tool, having a tool holder for holding at least one first tool, which has a tang having a first coupling contour that is able to be connected to the tool holder and having a striking mechanism for the striking drive of the first tool connected to the tool holder in the axial direction of the tool holder in a striking operation associated with the hand-held machine tool, a chuck adapter is provided to hold at least one second tool, which has a tang provided with a second coupling contour, which is able to be connected to the chuck adapter in a torsionally fixed manner.

A tool holder for a power tool comprising: a body defining a passageway in which a shank of a cutting tool can be located; at least one axial locking element moveably mounted within the body and which is capable of being moved between and held in at least a first release position and a second locking position where it projects into the passageway where it is capable of engagingly a shank of a cutting tool when located within the passageway in order to axially restrict the movement of the shank in the passageway; and at least one axial guide moveably mounted within the body and which can be moved between and held in at least two positions, including one position where it projects into the passageway where it is capable of engagingly supporting a side of a shank of a cutting tool when located within the passageway.

A hand tool impacting device may include, a drive shaft with an aperture, an impaler disk, and a floating pin positioned within the aperture of the drive shaft. A set of circular ramps on the outer edge of the impaler disk may interact with a stationary pin insert to translate the drive shaft and create an impacting motion. A pair of springs placed against either side of the floating pin may allow a specialized tool bit to engage or disengage the impaler disk, thereby allowing selective use of translational impacting motion, or rotational torque. An impact bit for engaging the impaler disk may include, a tool head configured to engage a work piece and a tool shaft configured to be inserted into a hollow drive shaft to engage a floating pin. According to one embodiment, the impact bit includes a number of sleeves to guide the tool head during operation.

A power tool, in particular a rotary hammer or combination hammer, containing a percussion-mechanism apparatus for generating percussion pulses on a tool, having a basic body for receiving a rear end of the tool, at least one first and second locking element, each arranged lying in radial openings of the basic body in a reversible manner in a locking position or release position, wherein, in the locking position, the rear end of the tool is held in the basic body and, in the release position, the rear end of the tool can be removed from the basic body, a locking ring for holding the at least first and second locking elements in the locking position, and a press-on element for guiding the at least first and second locking elements in a first axial direction and a second axial direction. The press-on element consists at least partially of an elastic material.

A tool-holding apparatus (70) includes an engaging member (71) for engaging a tool accessory (B) and being movably supported in axial and radial directions in a rotational-output shaft (26) having an insertion hole (81) for holding the tool accessory (B). A first biasing member (72) biases the engaging member towards engagement with the engaging member. A bit sleeve (73) is movable in the axial direction along an outer-circumferential surface of the rotational-output shaft between a blocking position at which radial outward movement of the engaging member is blocked and a permitting position at which radial outward movement of the engaging member is permitted. A second biasing member (74) biases the bit sleeve toward the blocking position. A positioning part (75) is fixed on the outer-circumferential surface of the rotational-output shaft and stops the bit sleeve at the blocking position. The bit sleeve has a projection (88), which is disposed on the forward side of the first biasing member, extends inward in the radial direction, and slidably contacts the rotational-output shaft.