motorcycle dual-use engine cylinder pressure test tool 326 steam pressure gauge

3"(75mm) diameter gauge with dual color coded scale, can be quickly set to your motor or car, get accurate readings in valves, piston rings, cylinder bores or head gaskets. air gauge with quick coupling and pressure release button, manometer with two test pressure: 0-300psi, 0-20bar. drain valve with full copper nickel plating, anti-oxidation and corrosion. included 4 adapters: m10*1.0mm / m12*1.25mm / m14*1.25mm / m18*1.5mm. m10 thread is suitable for motorcycles, and m12 / m14 / m18 threads are suitable for cars..syi