Abstract: The invention relates to a rotary tool (2) extending longitudinally from a shank region (8) to a front-facing end region along an axis of rotation (6) and having a carrier (4) with a plate seat (14) and a cutting insert (16) that can be replaceably inserted therein. The cutting insert (16) as well as the plate seat (14) each have radial and axial contact surfaces (40A, B) which are strained against one another with the aid of a clamping screw (50) during assembly of the cutting insert (16). According to the invention, it is provided that the axial contact surfaces (40A, B) and in particular also the radial contact surfaces (42A, B) are inclined in a V shape on one side of the cutting insert (16) and on the other side of the plate seat (14), so that a centering effect is automatically produced during assembly.

Abstract: A cutting head is formed for insertion into a support in a modular rotary tool, in particular a drill. The coupling head has a coupling having torque surfaces and clamping surfaces on its outer periphery. The coupling pin is divided into a front pin part and a rear pin part. The front pin part is defined by a circumferential groove. Stop surfaces for an axial pullout safety are formed in the transition area between the two the front pin part and the rear pin part. The torque surfaces and the clamping surfaces are arranged in different pin parts. For example, the clamping surfaces are preferably formed on the front pin part and the torque surfaces are preferably formed in the rear pin part.

Abstract: The rotary tool comprises a support and a cutting head which can be inserted into a pin receptacle of the support via a coupling pin. The support and the cutting head have mutually corresponding surface sections for transferring a radial clamping force and have mutually corresponding torque sections for transferring torque. For an axial pull-out stop device, effective stop surfaces are formed on the pin receptacle and on the coupling pin in the axial direction, wherein, to do this, a stop element is formed, the radial extension of which is smaller than or equal to a radial extension (r2) of the surface sections of the coupling pin and wherein the stop surfaces and the surface section are offset relative to each other in the circumferential direction.

Abstract: A cutting head is formed for insertion into a support in a modular rotary tool, in particular a drill. It has a coupling pin onto which outer cover surfaces and torque surfaces are formed as clamping surfaces. The coupling pin has a particular circular groove, which divides the cutting head into a front pin part and a rear pin part. Stop surfaces for an axial pullout safety are formed in the transition area between the two parts. The torque surfaces and the clamping surfaces are arranged in different pin parts. The torque surfaces are preferably formed in the rear pin part.

Abstract: The rotary tool comprises a support and a cutting head which can be inserted into a pin receptacle of the support via a coupling pin. The support and the cutting head have mutually corresponding surface sections for transferring a radial clamping force and have mutually corresponding torque sections for transferring torque. For an axial pull-out stop device, effective stop surfaces are formed on the pin receptacle and on the coupling pin in the axial direction, wherein, to do this, a stop element is formed, the radial extension of which is smaller than or equal to a radial extension (r2) of the surface sections of the coupling pin and wherein the stop surfaces and the surface section are offset relative to each other in the circumferential direction.

Abstract: A cutting tool with a cutting insert and a pivotable screw and nut combination for holding the cutting insert. The cutting tool also has a feed mechanism to adjust the position of at least one cutting edge of the cutting insert in the cutting tool.

Abstract: A twist drill or drill/chamfer tool that comprises a drill with a shaft section. The shaft section is provided with a twisted flute and a clamping ring as the retainer of a facing cutter. The clamping ring tubularly encloses the shaft section or the drill shaft and can be fixed on the shaft section or drill shaft in different axial adjustable positions. The clamping ring can be tensioned on the drill with tension screws that extend through the clamping ring substantially radially to the axis of the drill. The tension screws impinge the surfaces of the twisted flutes, which twisted flutes are enclosed by the clamping ring indirectly with a clamping shoe that is interposed in a twisted flute.

Abstract: A twist drill or drill/chamfer tool that comprises a drill (1) with a shaft section (2) that is provided with a twisted flute, and a clamping ring (4) as the retainer of a facing cutter (5). Said clamping ring tubularly encloses the shaft section (2) or the drill shaft (30) and can be fixed thereon in different axial adjustable positions. The clamping ring (4) can be tensioned on the drill (1) by means of tension screws (6) that extend therethrough substantially radially to the axis (7) of the drill. The tension screws (6) impinge the surfaces of the twisted flutes (9, 10) which are enclosed by the clamping ring (4) indirectly with a clamping shoe (19, 20) that is interposed in a twisted flute (9, 10).

Abstract: The invention relates to a chip removing tool comprising a tool shank which acts as a support for a perforated plate. The perforated plate is tensed by means of a screw connection passing through the orifice of the perforated plate and a through hole of the tool shank, containing a screw which is introduced from the side of the perforated plate, and a corresponding nut positioned beneath the tool shank inside the seat of the tool shank. The tensed perforated plate is adjusted in an effective manner in a direction of adjustment which is substantially radial in relation to the axis of rotation of the tool shank, whereby the contact surfaces between a) the screw head and the perforated plate and b) the head of the corresponding nut and the tool shank enable a pivotable movement of the screw connection following on from the adjustment movement, said screw connection consisting of a screw and a corresponding nut, as a result of crowning.