This kit contains everything you need for thread repair. It includes threaded inserts, which are high-quality stainless steel. These inserts are precision-machined with internal helical threads for a secure, durable connection.The kit also includes an installation tool for inserting the threaded insert into the base material. This tool ensures precise and easy installation, effectively repairing damaged threads.The kit also includes a thread tap, which is needed to prepare the base material before inserting the threaded insert. The tap helps create clean, precise threads, making it easier to install the threaded insert later.This thread repair kit is versatile and can be used in a variety of applications, such as repairing threads on automotive parts, electronic devices, furniture, machinery, and more.In short, the M8 x 1.25mm thread repair kit is a complete tool for effectively repairing damaged threads. It is easy to use and provides long-lasting results. Whether for DIY projects or professional repairs, this kit is an excellent choice for repairing thread failures.