Oil Spark Plug Thread Repair Kit (64 Items). Brand: KRAFT&DELE. This professional kit is designed to repair drain plug threads used in oil pans, gearboxes and other vehicle components. The kit allows for quick and convenient regeneration of damaged threads without having to replace the entire component. The set is made of high-quality HSS steel, thanks to the fact that the tools are durable and resistant to intensive use. The kit matches most common threads used in passenger cars and light trucks.