Tool and method for cutting thread production

Tool for cutting thread production, in particular a tap, comprising:

• at least one working region of the tool that is rotatable or rotated about a tool axis (A);
• and
• a plurality of cutting teeth arranged on the tool circumference in the at least one working region of the tool,
• wherein:
• each cutting tooth has a cutting tooth head at its point or region that is radially farthest from the tool axis (A);
• the radial distance (R) of the cutting tooth heads from the tool axis (A) is substantially the same or decreases counter to an intended feed direction (V) of the tool (10) in a guide region of the working region;
• the radial distance (R) of the cutting tooth heads from the tool axis (A) increases counter to the intended feed direction (V) of the tool in a starting region, located in front of the guide region in the intended feed direction, of the working region, such that, in an axial cross section, the superimposed profiles of axially spaced-apart cutting teeth have a profile differential area;
• and
• the radial cutting tooth profile boundary of the cutting teeth is entirely or at least sectionally curved in the starting region and/or in the guide region.