







A simple open-end wrench is a commonly used manual tool, mainly used to tighten or loosen various bolts and nuts. The following is a detailed description of a simple open-end wrench:
Basic structure
• Openings: A simple open-end wrench has one opening at each end, with a fixed size for fitting onto the head of a bolt or nut. The shape and size design of the opening enable the wrench to tightly fit the bolt or nut, providing stable torque transmission.
Handle: The middle part of the wrench is the handle, used for holding and applying force. The handle is usually designed to be longer to increase the leverage effect, allowing users to generate greater torque when applying less force.
Rod body: The part that connects the opening and the handle is the rod body, which is responsible for transmitting the force applied by the user on the handle to the opening, thereby achieving tightening or loosening of bolts or nuts.
materials and processes
Material: Simple open-end wrenches are usually made of high-strength steel, such as carbon structural steel or alloy steel. These materials have good wear resistance, corrosion resistance, and toughness, and can maintain stable performance in long-term use.
• Process: The manufacturing process of wrenches usually includes multiple steps such as forging, heat treatment, machining, and surface treatment. These processes ensure the dimensional accuracy, surface smoothness, and service life of the wrench.
Characteristics and advantages
• Easy to use: The design of the simple open-end wrench is simple and intuitive, allowing users to quickly get started without the need for complex operations. Just choose the appropriate opening size, place the wrench on the head of the bolt or nut, and apply force.
Strong adaptability: A simple open-end wrench can usually be used for various specifications of bolts and nuts. Although the size of the opening is fixed, manufacturers will produce a variety of wrenches with different opening sizes to meet the different needs of users.
Low cost: Due to its simple structure and mature manufacturing process, the cost of a simple open-end wrench is relatively low. This makes it one of the essential tools in many households and repair workshops.
Usage
• Choose the appropriate wrench: Choose a simple open-end wrench according to the size of the bolt or nut. Ensure that the opening size of the wrench matches the head size of the bolt or nut.
Correctly grip the wrench: Hold the handle of the wrench in your hand and maintain a stable posture. Make sure to grip the handle tightly with both hands to prevent the wrench from slipping off when applying force.
Apply force: Place the wrench on the head of the bolt or nut, then rotate the handle clockwise to tighten the bolt or nut, or counterclockwise to loosen the bolt or nut.
precautions
• Avoid excessive force: When tightening or loosening bolts and nuts, avoid excessive force. Excessive force may cause damage to bolts or nuts, and may even cause the wrench to break.
Regularly check the wrench: After long-term use, the opening of the wrench may wear or deform. Therefore, the condition of the wrench should be checked regularly, and if wear or deformation is found, it should be replaced in a timely manner.