Check the listing for details. Performance Tool W80579 Flex Drive Compression Tester - Flex Drive Compressio.... Condition: New. Listed at 25.28 USD. The Performance Tool W80579 Flex Drive Compression Tester is a versatile tool used to measure the compression pressure in an engine cylinder. It is commonly used in automotive engine testing and troubleshooting. The compression tester features a flex drive design that allows for easy access to hard-to-reach spark plug locations. It is designed to provide accurate and consistent compression readings, enabling precise diagnosis of engine performance issues. This tool is essential for automotive enthusiasts and professional mechanics for effective engine testing and maintenance. Features: Flex drive compression tester for measuring engine cylinder compression pressure Versatile design with a flexible drive for accessing hard-to-reach spark plug locations Provides accurate and consistent compression readings Enables precise diagnosis of engine performance issues Essential tool for engine testing and troubleshooting Specifications: Manufacturer: Performance Tool Model: W80579 Compatibility: Engine cylinders