V Coil 18mm x 2.5 Thread Repair Kit

Amazon

Size - 18mm. Pitch - 2.5mm V-Coil kit for repairing damaged threads V-Coil tap manufactured from High Speed Steel V-Coil wire thread inserts manufactured from aerospace specification stainless steel Due to the narrow and exact tolerances, the newly repaired thread is usually stronger than the original thread

Zoro Tools

Made by the German manufacturer of wire inserts V-Coil. Most sets come with matching drill bit (up to M12) and twice as many inserts as other brands.