Reversable PCB Engineering Ruler 6 Inch METRIC & SAE

Every Electronic Geek should have a ruler like this for measuring. Made and styled of Printed Circuit Board. In addition to measuring the basic functions of millimeter and inch sizes, this ruler also integrates relevant information for PCB design such as angle gauges, devices, IC pin spacing tables, Resistor and capacitor chip package, the commonly used diameter reference drill, line width size reference. Information is printed with FR-4 gold-plated fingers.