Tool kits are containers for storing and carrying various tools, and are widely used in refrigeration maintenance, mechanical installation, automobile maintenance and other fields. The following is a detailed introduction:
1. Product structure
Shell: mostly made of engineering plastics or metal. Engineering plastic shells are light in weight, low in cost, and have certain impact resistance and corrosion resistance, such as PP, PC, etc.; metal shells (such as aluminum alloy) are high in strength, durable, and have better protection performance. They can effectively resist external collisions and extrusions and protect internal tools.
Internal compartments: Reasonable compartment design allows tools to be stored in categories to avoid mutual collision and wear. Commonly available are detachable soft compartments, made of nylon, canvas and other materials, which are convenient and flexible and can be adjusted according to the size of the tool; there are also injection-molded hard compartments, which accurately adapt to the shape of the tool and have good fixation.

2. Tool configuration
Refrigeration maintenance tool kit: Contains pressure gauge, double gauge valve, CHARGING HOSE, cutter, expander, etc. The pressure gauge and double gauge valve are used to measure the high and low pressure side pressure of the refrigeration system, the CHARGING HOSE connects the refrigerant cylinder to the system, the cutter is used to cut the copper tube, and the expander is used to expand the copper tube to meet the needs of refrigeration system installation, maintenance, refrigerant charging and other operations.
Mechanical installation tool kit: equipped with wrenches, screwdrivers, pliers, sockets, etc. Wrenches are used to tighten or loosen nuts and bolts; screwdrivers have different specifications and are suitable for various screws; pliers can clamp and cut; sockets are used with wrenches for the disassembly and assembly of nuts and bolts of different sizes.

3. Performance characteristics
Portability: Designed with a handle or shoulder strap that is easy to carry. The handle is made of thick plastic or rubber material, which feels comfortable and has strong load-bearing capacity; the shoulder strap can be adjusted in length, and some shoulder straps are padded to reduce the burden on the shoulders and facilitate maintenance personnel to carry tools at different work locations.
Organize in an orderly manner: The internal compartments and card slots are precisely adapted to the shape and size of the tools, so that the tools are neatly arranged and easy to use, while preventing the tools from shaking and colliding in the bag and causing damage.
Durability: The outer shell and internal compartment materials are of reliable quality and can withstand a certain degree of wear, collision and harsh environment. Some tool bags have special surface treatments, such as waterproof coating and wear-resistant coating, to extend the service life.