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RIMAC® valve spring testers have been the industry standard for over 70 years, starting in 1929, nearly five months before The Great Depression. Professional engine builders, mechanics, and serious enthusiasts have despaired for years over the fact that the only way to get your hands on a used one is through an auction website and a $1,000+ price tag, if you can find one at all!  Most give up on finding a simple, dependable Rimac and opt for hydraulic or digital versions. Finally, the Rimac Brand has returned with the quality, reliability and standards that made it legendary to the builders worldwide.