Bolt coupler is a tool for disassembling and installing bolts. It usually needs to be used together with a wrench or torque wrench. The structure of bolt coupler varies in many ways. Different specifications are suitable for different bolt models and sizes.

1. Before using the bolt coupler, clean the bolt first and check whether the socket is suitable for use.

2. When using it, you should first select the correct model and size, and then engage it on the bolt for operation.

3. Pay attention to checking whether the bolt and socket fit tightly. In case of jamming or loosening, it should be dealt with in time.

4. After use, it should be cleaned and stored in time to avoid damage or loss.