1、Main Application: The magnetic head of the torsion wrench will attract the spark plug quickly and steadily, and it is not easy to loosen the spark plug during installation or removal. The head supports 360 degree rotation, which is the only way to remove the spark plug on some models. 2、Wide Application: In addition to changing the spark plugs on the vehicle. Also included in the set are 3 star bit sockets (T20, T30 and T40) for bike, motorcycle repairs, equipment installations and more. 1 piece 9.8in extension pole for hard to reach areas. Very practical! 3、Accurate Operation: 3/8in drive click torsion wrench set with 14 and 16 mm spark plug sockets, high accuracy (± 3%) allows you to securely and accurately tighten spark plugs to the exact torsion value specified. 4、Chrome Vanadium Steel: Made of chrome vanadium steel, which is wear resistance, providing the product with a long life span . 5、Standard Production: Our products have been debugged many times by the factory to ensure the accuracy of the torsion wrench. Use it with confidence!