8PCS Gasoline Engine Compression Tester Cylinder Compression Gas Engine Set Automotive Tool Gauge

Features:
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 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.
Included 2 pipes: crank shaft type transverse axis type, both with rubber cone cap and can test the compression on almost any engine.