Draper 02150 SRA Short Reach Adaptor for Petrol Engine Compression Testers and Cylinder Leakage Testers (65mm)

Expert Quality, brass adaptor with an internal thread size of 14 x 1.25mm and external thread sizes of 10 x 1.00mm and 12 x 1.25mm.
Converts conventional petrol compression testers to be compatible with M10 and M12 threaded spark plugs, commonly found on BMW's, MINI's, Alfa Romeo's and Jaguar vehicles.