Thread-forming tool, tool holder for a thread-forming tool and method of clamping a thread-forming tool in a tool holder

摘要

Thread-producing tool (2), comprising a tool shank (8) enclosing a tool axis or axis of rotation (R) and a working area (9) designed to produce threads, the tool shank (8) in its end area (14) facing away from the working area (9) is designed differently from the shape of an adjoining area of the tool shank (8) and wherein the tool shank (8) has at least one clamping surface (11) inclined radially inwards relative to the axis of rotation (R), wherein the end area ( 14) is designed as a polygon, with the clamping surface (11) merging into an adjacent surface of the end region (14) designed as a polygon in a substantially stepless manner or adjoining it steplessly.