Wrench is a tool widely used in machinery, construction, automotive maintenance and other fields, its main function is to help users apply torque, rotate or fix nuts and bolts. The design and variety of these tools make them an indispensable companion in modern engineering and maintenance work.

There are many kinds of wrenches, common open wrenches, box wrenches, open wrenches and socket wrenches. Each end of the open end wrench has a curved opening, which can grasp the two opposite sides of the nut, suitable for use in places with large space. The box wrench, on the other hand, is round and has multiple grooves that allow better access to the nut and prevent slippage. The adjustable opening width of the spanner is characterized by its adjustable opening width, which can adapt to different specifications of nuts, allowing users to deal with a variety of situations with only one tool. Socket wrenches are usually used in conjunction with torque wrenches to provide higher torques and are suitable for scenarios requiring fine adjustment.

When using a wrench, it is very important to master the correct operation method. Improper use may result in damage to tools or damage to furniture and equipment. For example, applying too much force with an improperly sized wrench may damage the nut or bolt, thereby affecting the stability of the entire structure. Therefore, before starting to work, confirm the specifications of nuts and bolts, and select the appropriate wrench, is the first step to ensure safe and effective operation.

In addition, the maintenance wrench is also a link that cannot be ignored in the process of use. Regular cleaning and lubrication of the wrench can effectively extend its service life and ensure that it will not fail at a critical moment. At the same time, storing the wrench in a dry and clean environment to avoid contact with damp or corrosive substances also helps to keep the tool in good condition.