International audience ; This study explores the technical diversity of blade production in the village of Vaux-et-Borset located in Hesbaye (Belgium), where two settlements have been excavated. The first dates to the Linear Pottery Culture and the second is dated to the Blicquy/Villeneuve-Saint-Germain culture. The Linear Pottery Culture settlement comprises of five houses and an enclosure. Stratigraphic observations, combined with the different orientations of the farmsteads suggest two or three occupation phases. The Blicquy/Villeneuve-Saint-Germain village also comprises of five houses. This paper will focus on the flint industry from these settlements or more precisely on the blades, the study of which underlines a large technical diversity. The objective is to propose a new interpretation of these lithic industries aimed at defining technical traditions, based on the identification of technical processes acquired through learning. By studying both Linear Pottery culture and Blicquian productions, based on 755 Linear Pottery blades and 1186 Bliquian blades, we aim to understand the relationship between continuity and innovation in these two cultural groups from the unprecedented perspective of the transmission of technical expertise. Linear Pottery knappers and Blicquian knappers from Vaux-et-Borset do not select the same siliceous materials to produce their blades, as the former has clearly oriented their selection towards local raw materials, whereas the proportion of exogenous flint blades in Blicquian contexts is extremely high and is largely preferred in several housing units. The large supply of exogenous raw materials to the Blicquian settlement does not seem to be for the manufacture of tools for a particular technical activity, but was used for the village's contemporary needs, on the same basis as local materials. The productions are similar with the manufacture of small blades (7-10 cm) with a trapezoidal section. Furthermore, all raw materials seem to have been knapped locally, raising the ...