Lone Star Circuits (LSC, also known as Best Circuit Boards) is a provider of close-tolerance CNC machining and rigid printed circuit boards services. It offers mechanical capabilities, plated and non-plated through holes, sequential lamination, control-depth drill and backdrill, scoring, edge connector bevel, profile, testing, documentation, and other capabilities. The company caters to defense, aerospace, medical, energy, military, commercial electronics, and other sectors.