Most of the cutting models developed in the literature attest only to the presence of cutting forces in the balance of mechanical energy resulting from cutting. However, several studies [1–4] have highlighted the presence of cutting moments during machining, and particularly for milling. From a theoretical point of view, a complete energy balance must integrate all the components of the mechanical actions (forces and moments). The predictive model of this study proposes to characterize the evolution of the moments in the cutting zone for milling. The objective is to determine a model similar to the cutting forces which expresses a relationship with the chip section define by the Kc coefficient but by integrating the specific behavior of the moments. This work gives perspectives from an energetic point of view for which the part of moments in the energy balance could be substantial for specific configurations as small-radius tools or high-speed milling.