Patent ID: 8656599

Claim:
A cutting tool for cutting out a sheet-like section from a sheet-like structure, or from a thin-walled wall section of a container, and for receiving the sheet-like section or respectively the cut-out wall section in the cutting tool, the cutting tool comprising: a basic body, which includes at least in one portion a prism-shaped hollow body with a prism-shaped jacket wall, whose front edge is configured as a cutting edge extending along the circumferential direction of the prism-shaped hollow body and surrounding the front opening of the hollow body; and a connecting region for connecting the basic body to a drive means; the front edge, configured as a cutting edge, of the prism-shaped jacket wall including along the circumferential direction a course with different positions in axial direction of the prism-shaped hollow body; wherein the front edge including the cutting edge includes at least in two cutting edge-circumferential regions one protruding cutting edge section each, protruding along the axial direction, on an inner face of which section the prism-shaped jacket wall inner surface includes a recess, which is adjacent to the respective protruding cutting edge section of the cutting edge; wherein the cutting edge extends continuously along an entire circumferential direction of the prism-shaped hollow body; and wherein an axially set-back cutting edge section, serving as post-cutter, is disposed in each case between the axially protruding cutting edge sections serving as pre-cutters; wherein a) the jacket wall inner surface at the protruding cutting edge sections includes a slanted course along the axial direction all the way to the cutting edge, in which slanted course the radial spacing measured from a longitudinal axis of the prism-shaped hollow body increases from the longitudinal axis to the jacket wall inner surface along the axial direction to the cutting edge; or b) the jacket wall inner surface at the protruding cutting edge sections includes a recess in a form of an annular groove, which does not border all the way to the tip of the respective protruding sections; and wherein the jacket wall inner surface at the set-back cutting edge sections has no slanted course, in which non-slanted course the radial spacing measured from the longitudinal axis of the prism-shaped hollow body is constant from the longitudinal axis to the jacket wall inner surface along the axial direction.