A 9-piece open-ended slot sleeve made of chromium-vanadium steel, featuring multiple size specifications, is suitable for disassembling and assembling oxygen sensors and diesel fuel injectors. The side slot design allows for avoiding the pipeline, and when used with a ratchet wrench, it is suitable for auto repair and maintenance. It is convenient for storage and is suitable for use in repair shops and vehicle maintenance.

The entire set consists of 9 different specifications, with sizes ranging from 10mm to 22mm. It is suitable for most oxygen sensors and pipe joints of the current market vehicles. The sockets are made of chromium-vanadium steel, with stable overall hardness. During the screwing operation, they are less likely to slip or deform. The side of the socket has a slotted opening design, allowing for direct operation on the pipe without removing the pipeline, saving the step of dismantling the pipeline and improving the maintenance efficiency.During vehicle maintenance, parts such as oxygen sensors and diesel fuel injectors have limited space for operation. Ordinary sockets are difficult to operate directly and the disassembly and assembly process is time-consuming and labor-intensive. This set of slotted opening sockets is specifically designed for disassembling oxygen sensors and connecting pipe joints, and is a commonly used auxiliary tool in vehicle maintenance.

The sockets come in two types of hexagonal drive specifications, 3/8 inches and 1/2 inches. They can be used in combination with ratchet wrenches and extension rods, and are suitable for the regular driving tools in vehicle repair workshops. The inner wall of the socket fits the shape of the nut tightly, ensuring a secure bite and uniform force during the screwing process, reducing the probability of the nut slipping or wearing out, and better protecting the original vehicle parts.

The tools are stored in the matching packaging, neatly arranged, and convenient for carrying and storage. Whether it is for store vehicle maintenance operations or personal enthusiasts' self-maintenance and repair of vehicles, they can be used. When encountering scenarios such as oxygen sensor detection and replacement or diesel fuel injector disassembly and assembly maintenance, this set of sockets can handle various specifications of parts without the need to prepare multiple tools separately.

When using, insert the socket into the part, align the drive wrench and apply torque steadily, keeping the force direction straight to minimize lateral force. Before the operation, it is recommended to clean the dust and rust on the part surface and check the fit between the socket and the nut. Avoid violent knocking beyond the tool's bearing capacity to prevent tool damage.

After each use, wipe off the oil stains and debris on the socket surface, put it back in the packaging for storage, reducing rust and extending the tool's service life. This set of slotted sockets specifically addresses the problem of disassembly and assembly of oxygen sensors and pipe joints in limited spaces, reducing obstacles in maintenance operations, and is a practical vehicle maintenance tool for vehicle repair.