Abstract: A beading tool for working retaining arms of pieces of jewelry comprises a cylindrical shank and a head. In this case, the head comprises a cylindrical portion and a transition portion. The shank and the head are arranged along a shared central axis. In this case, the external diameter of the shank is greater than the external diameter of the cylindrical portion. Furthermore, the cylindrical portion is arranged on a first end of the beading tool, wherein the transition portion is arranged between the cylindrical portion and the shank. The head comprises an indentation on its front face on the first end.