Expert Quality, brass adaptor with an internal thread size of 14x1.25mm and external thread sizes of 10 x 1.00mm and 12x1.25mm. 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.
- Expert Quality
- Brass adaptor
- Internal thread size of 14x1.25mm
- External thread sizes of 10 x 1.00mm and 12x1.25mm
- Converts conventional petrol compression testers to be compatible with M10 and M12 threaded spark plugs