Abstract: A power compass saw with a housing that accommodates a lifting rod for the up and down movement of a longitudinal saw blade attached thereto, has a toothed side and a saw blade back and with a guide roller which supports the saw blade back and has a central groove into which the saw blade extends with its saw blade back and is guided therein, the central circumferential groove has tapered groove sides with a 5° taper, the saw blade back has a straight portion and an end beveled portion with beveled edges having a 7° taper at both sides, the saw blade back has diametrically opposed edges provided at a transition from the straight portion to the beveled portion, and the saw blade back has a width which is measured between the diametrically opposed edges and is greater than a width of a bottom of the circumferential groove.

Abstract: A method and apparatus for mounting a component onto a substrate of an electrical assembly that utilizes a transponder unit. The transponder unit is attached to the substrate for storing mounting process data, such as, the component manufacturer identification code, the number of missing components, and the number of faulty substrate position, before, during or after the mounting process. The stored process data can then be transmitted to a control unit that controls the component mounting apparatus wherein the data is processed and utilized during the mounting operation to enhance process quality control.