This part of ISO 9448 specifies the main dimensions and tolerances, in millimetres, of guide bushes of form A, plain gliding bushes, type 1, intended for use in press tools and to be mounted in the clamp plate by means of interference fit.
It gives guidance on the materials, and specifies the hardness and the designation of bushes in accord-ance with this part of ISO 9448.
BS 7568-18:1992 history
2014BS ISO 9448-2:2013 Tools for pressing. Guide bushes. Form A, gliding bushes, plain, type 1