Thread-milling cutter and thread-milling insert

A thread-milling cutter comprising:

• a tool holder comprising at least one pocket extending essentially in an axial direction (A) of the cutter;
• and
• at least one cutting insert, the at least one pocket of the tool holder adapted for receiving the at least one cutting insert, wherein the at least one cutting insert comprises:
• a longitudinal cutting edge,
• a first abutment surface defining at least one positioning plane opposite the longitudinal cutting edge for a radial positioning of the cutting insert in the respective pocket, and
• at least one protrusion provided on the abutment surface,
• wherein a side surface of the at least one protrusion is oriented at an angle (α) to the axial direction (A) of the cutter and adapted for contacting a complimentary surface of the pocket for an axial positioning of the insert, and
• wherein at least one lateral surface of the cutting insert contacts a lateral abutment surface of the respective pocket for positioning the cutting insert, and wherein at least one clamping element is provided for forcing the insert against the lateral abutment surface, and
• wherein the insert is provided with at least one recess for receiving the at least one clamping element, and
• wherein the at least one recess for receiving the at least one clamping element is provided in the at least one protrusion.