The invention relates to a tool (3) for compacting a sintered component or a powder for the sintered component, with a clamping element (10) and a compacting element (11) which can be radially adjusted in terms of its dimensions, with a contact surface for the sintered component or powder, which has a surface complementing the surface of the sintered component to be produced, and the clamping element (10) has an oblique first surface (12) and the compacting element (11) has an oblique second surface (13) complementing it, and the first and the second oblique surface (12, 13) co-operate in order to prise apart and open or make smaller the compacting element (11), and the clamping element (10) and/or the compacting element (11) can be displaced in the axial direction, and a support element (9) is provided if necessary.