The first part of the thesis includes a theoretical overview of the division of milling procedures with regard to the direction of milling, the quality of the treated surface, surface shape and position of the milling cutter. The milling procedure is explained, as well as the division of milling tools with regard to tooth treatment, surface shape, method of attachment to the milling spindle, direction of rotation and production of threaded grooves. Emphasis is also placed on the review of materials for making milling tools. The second part of the paper involves modeling two milling tools using a CAD system for parametric modeling using features. These tools have the same geometric features, but one is coated with Borox and the other is polished. The paper analyzes the simulation of milling as well as the calculation of stress and displacement (deformation) of milling tool blades on the example of milling tools on a workpiece made of aluminum alloy, which according to European standards is EN AW-7075 (AlZn5,5MgCu). An analytical calculation of technological parameters was made. According to the calculation of certain technological parameters and geometry of the milling cutter, boundary conditions and restrictions were set and a numerical calculation was performed using the finite element method in the Ansys software package. A comparison of the results and discussion of a solution aimed at answering whether it is better to use a Borox-coated milling tool or a polished milling tool in the process of machining an aluminum alloy workpiece EN AW-7075.