This paper provides a critical review of Smith's (1989) typological discussion of the antler ‘mattocks’ of the British Mesolithic. The evidence for use of the term ‘mattock’ is assessed in relation to a new technological analysis of antler tools from Britain. In the light of the data presented here and developments in the study of Mesolithic osseous technologies from elsewhere in northwest Europe, a redefinition of the terminology and typology used to study these artefacts is presented. The potential for this redefinition to shape research across Mesolithic Europe is demonstrated through a discussion of the earliest occurrence of antler T-axes around the North Sea basin.