Made from high carbon steel materials, this spark plug thread tool set is robust and can be used repeatedly. Also incredibly easy to use, making it suitable for both professionals and diy enthusiasts. Its compact design allows for easy portability, can repair your spark plug threads anytime, anywhere. Features -Color:Multi -Material:High carbon steel -Size:7.50X2.00X2.00cm/2.95X0.79X0.79in -This tool is designed to repair damaged threads plug holes, ensuring that they can be securely fastened and function properly. -The tool set is constructed from high carbon steel materials that are built to last, providing reliable performance over time. -With its user-friendly operation, thread repair kit can be used with ease. -The thread repair kit is a convenient and effective solution for fixing damaged spark plug threads. -The compact design of this tool makes it easy to store and transport, allowing you to take it with you wherever you go. Package list: 1 x Thread Tap 4 x Thread Inserts