Instructions for Use of Combination Wrenches

I. Product Introduction This set contains 5 combination wrenches of different specifications. Each wrench has both an open end and a box end, suitable for bolts/nuts of various sizes. It can be used in scenarios such as automobile repair, furniture assembly, and industrial machinery maintenance, meeting diverse tightening and disassembly needs.

II. Operation Steps

1. Select the Specification: According to the size of the bolt/nut to be operated on, choose the wrench with the corresponding scale (such as 11mm, 12mm, etc.). Ensure that the open end/box end is suitable for the workpiece.

2. Apply Force for Operation: The open end is used in scenarios with limited space for quick clamping. The box end fits more tightly and provides more stable force application. When operating, keep the wrench perpendicular to the workpiece, apply force slowly and uniformly, and avoid slipping and damaging the workpiece.

3. Alternate Use: When encountering stubborn fasteners, the open end and box end can be used alternately, or used with tools such as sockets to increase torque.

III. Precautions

1. Clean the wrenches regularly, dry water stains and oil stains, and store them in a dry place to prevent rust and affect accuracy.

2. Do not use the wrenches beyond their range to avoid deformation and breakage. Uneven force may damage the workpiece or the wrenches. Always pay attention to the status during operation.

3. High hardness does not mean no wear. After long-term high-intensity operation, check the wear of the open ends and box ends, and replace them in a timely manner to ensure operation safety and efficiency.