Setting instrument (10) for a hip socket or shoulder socket inlay, having a handle part (11) and a suction element (12) that can be brought into sealing contact with the joint surface. The suction element (12) comprises a flexible moulded part (13) matched to the joint surface, which moulded part is deformable by a pulling element (14) in such a way that, when applied to the joint surface, an (increased) partial vacuum is formed between the joint surface and the flexible moulded part (13).
