●For checking pressure tightness of single cylinders on Diesel and gasolineengines ●Includes Gauge with Adaptors for single and multi-valve engines. M10 x 1.00 , M12 x 1.25 mm M14x 1.25,M18 x 1.5 mm , M24 x 2 mm. M12x 1.25 mm Adaptor with 7 mm hole for Vw Diesel engines. ●Maximum pressure : 6.8 bar or 100 psi. ●Suitable for most Vehicles and Motorcycles.