FunctionsPressure Gauge: Measures cylinder pressure in PSI and Bar.Flexible Extension Hose: Screws into spark plug holes in tight spaces.Brass Threaded Adapters: Fit different spark plug thread sizes (\(M10\), \(M12\), \(M14\), \(M18\)).Straight & Angled Push-on Connectors: Feature rubber cones for quick pressure checks without screwing into the threads.