10-piece set of transmission shaft thread repair kit, metric specification, used for minor thread repair of hub and transmission shaft screw. Includes drive sleeve, wrench and portable toolbox. Only suitable for slightly burr-deformed screws. For severely damaged screws, replacement is recommended. Do not forcefully twist. Special for auto repair chassis maintenance. It is a practical repair kit for screw thread damage handling by auto repair stores and mechanics.

The entire set includes multiple different-sized metric repair nuts， matching drive sleeves， and auxiliary hex wrenches， all of which are stored in a hard plastic toolbox. The toolbox has positioning slots， and each tool has a fixed placement position to prevent mutual collision between tools， making it convenient for organization and counting， and easy to carry and store when going out for maintenance. The different specifications cover the common metric thread sizes of transmission shafts and hub bolts on the market， which can meet the repair needs of multiple vehicle models.
This 10-piece set of transmission shaft thread repair kit is a specialized tool for automotive maintenance, mainly used for repairing damaged threads of transmission shafts, wheel screws, and hub bolts. When the screw threads have slippage,Collision deformation， burrs， or minor damage， there is no need to replace the screw directly. Use this set of tools to repair the threads and restore them， which is widely used in auto repair shops， chassis maintenance， and vehicle maintenance operations.

The tool body is made of high-strength steel， and the thread teeth are processed according to standards. The working principle is to place the repair nut on the outside of the damaged screw， and apply torque through the drive sleeve to re-shape the deformed， burr-covered， or slightly damaged threads， removing the protrusions and debris on the threads， restoring the thread shape， and allowing the nut to fit properly.

This tool is only suitable for repairing minor Collision， burrs， or local deformation of the threads. If the screw has cracks， large-scale thread breakage， or severely bent and rusted screws， the repair effect will be limited. It is recommended to replace the new screw directly. During operation， clean the surface of the screw of mud， rust， and iron filings， smoothly insert the corresponding-sized repair nut into the screw， do not forcibly twist it， do not apply excessive force when encountering resistance， to avoid further damage to the screw. After the repair is completed， clean the iron filings and impurities on the screw， test the smoothness of the normal nut engagement， and confirm it is qualified before installing it for use in the vehicle.

It is recommended to wear protective gloves and goggles during the operation to prevent metal debris from scratching. After the operation， wipe the surface of the tool of iron filings and oil stains， put it back in the toolbox for proper storage， to avoid being dropped or hit， which may cause deformation of the threads. Do not use it on workpieces beyond the specification range. This thread repair tool reduces the cost of spare parts replacement， improves the efficiency of chassis transmission shaft maintenance， and is a practical maintenance set for auto repair stores and mechanics to handle screw thread damage.