Lisle® Corporation is one of the oldest privately-owned automotive tool houses in the United States, with over a century of manufacturing expertise in specialty sockets, vise jaws and more. Lisle first began creating innovative automotive machining solutions in the 1950's as a way to maintain quality control, pricing and delivery. Today, Lisle proudly manufactures all their suspension tools, oil pan rethreading kits, testers and adjustment tools from their Clarinda, IA headquarters.