This article presents the results of traceological analyses of bone points and harpoon heads discovered at hunter-gatherer-fisher sites 1, 3, 4, 6 and 23 in Šventoji, coastal Lithuania, c. 3500–2700 cal bc. The data obtained through the studies were used to interpret technological processes and operational chains resulting from the production of these artefacts, as well as in answering questions surrounding the function of some specimens. Another important result of the presented research is the confirmation, thanks to an SEM-EDX analysis, of the presence of an inlay in the decoration visible on one of the harpoon heads.