The invention relates to compounds of the formula in which R1, E2 and X are as defined above. The supporting part of the composite tool is made of a tenacious iron-based material, and the working part is made of a precipitation harden iron-cobalt-tungsten alloy. The hinge mechanism includes a guide pin, and the guide pin transfers the rotational motion of the rotating support to the cam plate and permits inclination of the cam plate. A pressure-sensitive adhesive is used to re-adhere the marginal region to an underlying surface of the inner structure adjacent the opening through the laminate.