This extended pneumatic air gun barrel assembly is stored in a hard carrying tool box. The barrel is made of chrome-vanadium steel and comes in various lengths, suitable for pneumatic air guns. It can be used for auto repair, mechanical disassembly and assembly, and for handling deep-hole nuts. It is necessary to match the corresponding specifications when operating, and clean the oil stains and store it properly after use.

The inner wall of the barrel is in a standard hexagonal structure, which distributes the force evenly when engaging with the nuts, reducing the probability of slipping and rounding the nuts. The kit comes with connecting rods, conversion joints, and other matching accessories, enhancing adaptability and allowing it to match different specifications of pneumatic tools to meet diverse disassembly needs. Each barrel's outer wall is clearly marked with the specification identifier, making it easy to quickly identify the size and saving time when selecting tools during maintenance.This extended pneumatic air gun barrel assembly is stored in a hard red toolbox. The box has snap fasteners and a handle for carrying, and there are corresponding positioning slots inside. The barrels and accessories can be placed separately for easy classification and storage. When taking it out for maintenance, it is less likely to lose parts, making it suitable for use in auto repair shops, equipment maintenance, mechanical disassembly and assembly, etc.

The barrel is made of chromium-vanadium steel and undergoes heat treatment, which gives it good torsional resistance and is suitable for use with pneumatic air guns. The assembly includes two types of barrels: short and extended deep. It covers various common metric specifications. The extended barrel can handle nuts hidden inside components, making it easier to disassemble wheel bolts and deep fasteners in equipment. No additional extension accessories are needed.

The toolbox shell is impact-resistant and can protect the barrels when storing, reducing damage caused by bumps. When used with a pneumatic air gun, it is used for disassembling various mechanical and vehicle fasteners. Before operating, confirm that the barrel specification matches the nut and apply force steadily to the nut to avoid eccentric force application and prevent damage to the nut or barrel.

It is suitable for tasks such as tire removal and installation of automobiles, maintenance of construction machinery, and disassembly of fasteners of heavy equipment. It is not recommended to use it by manual violent striking. When operating, wear protective glasses and gloves to avoid risks caused by flying debris. After use, clean the oil and iron filings on the barrel surface, dry it, and put it back in the toolbox for storage. For long-term storage, simple rust prevention treatment can be done to extend the tool's service life.

This assembly kit has a complete range of specifications and can be combined in lengths to solve the problem of difficult access to deep bolts with ordinary short barrels. It is a common tool kit for auto repair and mechanical maintenance, capable of handling most heavy nut disassembly tasks, reducing the trouble of searching for compatible tools during maintenance.