Abstract: An expansion anchor is disclosed. The expansion anchor has an elongated main part having a receiving area extending substantially in the longitudinal direction, into which an expansion element can be inserted in the longitudinal direction, to press expansion tabs laterally from an initial position to an expanded position. At least one setting control member can be moved in the longitudinal direction on the expansion anchor and it is moved by movement the expansion element relative to the main part.

Abstract: An expansion anchor is disclosed. The expansion anchor has an elongated main part having a receiving area extending substantially in the longitudinal direction, into which an expansion element can be inserted in the longitudinal direction, to press expansion tabs laterally from an initial position to an expanded position. At least one setting control member can be moved in the longitudinal direction on the expansion anchor and it is moved by movement the expansion element relative to the main part.

Abstract: A drill bit has a shank (4) between a drilling head (3) and an insertable end (5) along an axis (2). The shank (4) is provided with at least two first flutes (34) that run along the axis (2) and at least a second helical flute (31). The first flutes (34) and the second flute (31) cross each other at several crossings (41).The width (35) of the first flute 34 steadily decreases over the area between two adjacent crossings (41) from one of the crossings (41) all the way to the narrowest place (42) and subsequently steadily increases all the way to the other crossing (41).

Abstract: A screw anchor for insertion into concrete is disclosed. The screw anchor has an essentially cylindrical base body on whose outer lateral surface an external thread is provided and which has a receptacle arranged in the direction of the cylinder longitudinal axis originating from an axial end face. The receptacle has a load-bearing structure originating from the axial end face. A tool receptacle extending essentially in the direction of the cylinder longitudinal axis is provided in the receptacle, wherein the tool receptacle extends further into the receptacle than the load-bearing structure from the end face to the rotary drive of the screw anchor in the cylinder longitudinal direction.

Abstract: A screw anchor for insertion into concrete is disclosed. The screw anchor has an essentially cylindrical base body on whose outer lateral surface an external thread is provided and which has a receptacle arranged in the direction of the cylinder longitudinal axis originating from an axial end face. The receptacle has a load-bearing structure originating from the axial end face. A tool receptacle extending essentially in the direction of the cylinder longitudinal axis is provided in the receptacle, wherein the tool receptacle extends further into the receptacle than the load-bearing structure from the end face to the rotary drive of the screw anchor in the cylinder longitudinal direction.