(57) A punch assembly for a press tool comprises a cylinder block (13) fixable to the
fixed member of the press and defining first and second interconnected cylinders (15,
28) each provided with a piston arrangement (10, 20), the axes of the cylinders being
arranged at an angle with the second piston arrangement (20) in the path of travel
of the movable member of the press tool whereby when the tool closes the second piston
arrangement is moved into its cylinder causing corresponding outwards movement of
the first piston arrangement to operate, for example, a punch piercing the workpiece
in the tool in a direction which an angularly disposed with respect to the direction
of movement of the movable member.
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