Abstract: The invention provides a tool for aligning a clutch plate with a pressure plate. The tool includes an externally threaded tube having an adjustable clamping member engaged therewith for axial movement relative thereto. The tube comprises a stepped bore including a step between bore portions of differing diameter. An axially slideable bolt passes through the tube and has a nut at one end and a head at the other end. An elongate insert extends into the bore, and at one end thereof abuts against the step within the bore. The other end of said insert is formed as an enlarged deformable portion and is adapted to be radially expanded by the head of the bolt being drawn into it when the nut is tightened.