RTT Devious Decoder Card - North American Version 1980-Mercury-Bobcat For use with National CompX

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RTT Devious Decoder Card - North American Version 1980-Mercury-Bobcat For use with National CompXThe RTT Devious Decoder Card (DDC) is a compact, professional measuring tool that combines key blade and pin stack gauges into a single, wallet sized instrument. Now upgraded to laser etched stainless steel for extreme durability and precision, the North American DDC gives locksmiths, technicians, and security pros a fast, reliable way to measure bitting depths, key pins, and master pins for common U. S. key systemswithout carrying bulky calipers or