Includes four essential adapters (M10, M12, M14, M18) for wide vehicle compatibility. Adapter Sizes: M10 1.0mm, M12 1.25mm, M14 1.25mm, M18 1.5mm. 4 x Thread Adapters (M10, M12, M14, M18). Motorcycle Car Cylinder Tester Pressure Gauge with M10-M18 Adapters.