Abstract: Apparatus for cutting miters on two side trim members which are bonded to the respective portions of the edge face of a panel (such as a table top), and on a head trim member which is to be bonded to the portion of the edge face of the panel between the side trim members has a first support for the panel with one or more abutments for the panel and one side trim member, and a mobile abutment which is reciprocable along the portion of the edge face between the side trim members to cause the generation of a signal when it reaches the other side trim member. The signals are used to stop the motor for adjustment of one of two mirror symmetrical sawing machines which are used to sever the trim members by moving their blades at right angles to the plane of the panel. The head trim member is mounted in a clamping device which carries adjustable stops and adjustable jaws for engagement with spaced-apart portions of the head trim member at a level above or below the panel.