Abstract: An undercarriage assembly and related method for motor vehicles includes a base and a support positioned adjacent to the base at a connection area. At least one nail is inserted into the support and the base of the connection area, which rigidly connects the support with the base without any pre-formed fastener holes.

Abstract: An undercarriage assembly and related method for motor vehicles includes a base and a support positioned adjacent to the base at a connection area. At least one nail is inserted into the support and the base of the connection area, which rigidly connects the support with the base without any pre-formed fastener holes.

Abstract: A screw driving device (2) for a hand tool drilling device (1) includes a screw magazine (3) for successive feeding of screws or bolts (4), a feeder block (6) that can be axially displaced against the force of a feeder spring (5), which at least partially supplies screws (4) during the back and forth reciprocating movement of the feeder block (6), and a driving tool (8) that can be coupled rotationally in form locked manner with a screw head (7), wherein the driving tool (8) axially moveably receives a rotatingly driven drilling tool (9) in a coaxial hollow inner space and is spring biased axially by a clutch spring (10) relative to the screw driving device in a rotation driver position X, in which a drilling tool tip (11) is axially spaced from the screw head (7) and is coupled rotationally form locked with the driving tool (8).

Abstract: A screw driving device (2) for a hand tool drilling device (1) includes a screw magazine (3) for successive feeding of screws or bolts (4), a feeder block (6) that can be axially displaced against the force of a feeder spring (5), which at least partially supplies screws (4) during the back and forth reciprocating movement of the feeder block (6), and a driving tool (8) that can be coupled rotationally in form locked manner with a screw head (7), wherein the driving tool (8) axially moveably receives a rotatingly driven drilling tool (9) in a coaxial hollow inner space, and is spring biased axially by a clutch spring (10) relative to the screw driving device in a rotation driver position X, in which a drilling tool tip (11) is axially separated from the screw head (7) and is coupled rotationally form locked with the driving tool (8).

Abstract: A self-drilling screw including a drilling section (1; 4) adjoining a thread section (2; 5) of the screw and formed of first (11; 41) and second (12; 42) parts arranged one after another, within the drilling section (1; 4) having first and second cutting edges (15, 16; 45, 46) a radial extension of which is symmetrical with respect to the longitudinal axis of the screw, in the first, in a drilling direction, part of the drilling section (1; 4), with at least a portion of the second part (12, 42) of the drilling section (1, 4), which is located between the first part (11, 41) and the thread section (2; 5), having in a region of one of the first cutting edges (15; 45), a radial extension (R1; R3) corresponding, at most, to a half of a root diameter (D1; D3) of the thread section (2; 5), and with the second cutting edge (16, 46) having in the second part (12, 42) of the drilling section (1, 4), a radial extension (R2; R4) which is smaller than a half of a pitch diameter (D2; D4) of the thread section (2, 5) and

Abstract: A rotary tool for imparting rotation to a drill or an attachment element (2), and including a rotation-imparting element (14), and apparatus (6) for storing a cooling medium, and a conduit (7) for delivering the cooling medium to an operational side end region of the drill or of the attachment element (2).

Abstract: A grinding or separating tool has a base body with a synthetic plastic max and a plurality of reinforcing fibers, a working coating a plurality of hard grains, and an intermediate layer applied on the base body and located between the base body and the working coating so that the fibers of the base body extend outwardly beyond the plastic matrix of the base body and are embedded in the intermediate layer.