The description of the simulator allowing the definition of basic geometrical parameters characterizing the interaction of the second order tools and a ring gear machined by them of a shaver-roller for all stages of its shaping: from roughing to finishing is shown.

A description of the algorithm for computation and synthesis of a shaver-roller machine engagement with a cylindrical cog-wheel with circular teeth (CCCT) for the definition of a tool rational diameter with respect to the diameter of the wheel worked by it is shown.

The description of the simulator of a shaver-roller chip groove having a parameter presentation of its helical surfaces is shown. A procedure for the definition of tool width life allowing the assurance of a sufficient strength during machining in a “tool-blank” engagement is formed.