131 Pcs Thread Repair Set

This 131‑piece thread repair set is practical for repairing broken and worn threads in auto and machinery maintenance. The thread repair set comes with drills, taps, installation tools and helicoil inserts for complete repairing operations. This helicoil insert adopts high‑quality alloy steel to deliver stable strength and long service life. Each helicoil insert restores thread strength without replacing expensive original spare parts. This damaged thread repair kit handles stripped bolt holes on engine, gearbox and other metal components well. The damaged thread repair supports multiple common metric sizes for daily workshop use. This thread repair set is stored in a solid metal case for neat arrangement and convenient carrying. This helicoil insert tool suits professional mechanics and experienced DIY operators for damaged thread repair jobs.