In a method for creating a through-thread, thread creation means is moved in a screw-in movement in an axial forward direction (VR) through a workpiece from a first workpiece side to a second workpiece side opposite the first workpiece side such that the end face projects out of the workpiece, wherein the thread creation means is moved through the workpiece, in particular along a first line which is a helical line, wherein then, to create at least one countersink, the thread creation means is moved in a countersinking movement, in particular along a second line that differs from the first line, and wherein, for subsequent withdrawal, the thread creation means is moved back through the workpiece in a screw-out movement in the axial backward direction (RR), in particular at least substantially along the first line.

A thread milling tool extends along an axis of rotation and contains a thread milling section and a drill tip adjoining the thread milling section. The thread milling section has three cutting flutes and at least one thread milling tooth, while the drill tip has three main cutting edges, each of which reaches a main cutting circle when viewed in parallel to the axis of rotation. The main cutting circle defines a drilling diameter that can be produced by the drill tip. Each main cutting edge has a main cutting surface that is connected to one cutting flute of the cutting flutes and reaches the main cutting circle at a respective radial main cutting angle when viewed in parallel to the axis of rotation, and at least one radial main cutting angle of the radial main cutting angles is positive.