Spring Tool Solutions (STS) was formed when North American Spring Tool (NAST) and the Spring Manufacturers Supply Company (SMSC) merged in 2023. Both Connecticut companies had been in business for more than 40 years before they joined to become STS. Prior to the merger, NAST was known for providing high quality special tooling for foreign and domestic spring coiling machines, regardless of the machines age. SMSC was noted for its technical ability to quickly reverse engineer complex legacy tools for spring coiling machines. STS brings these talents together to provide spring manufacturers with a single, comprehensive spring tooling resource. The new company provides a complete line of carbide and steel tooling for the spring industry, including special tooling, engineering assistance, reverse engineering, and salvage and rework. STS also provides arbors, guides, coiling tools, quills, and much more.