1Package Included: Thread repair kits include thread inserts, drill bits, thread taps, insert installation, lug break tools for a smooth repair experience. 2Thread Restorer: Quickly repair damaged threads with this helical thread repair kit, perfect for engine repair and other automotive applications. 3Durable Construction: Made of high speed steel material, it has high wear resistance, good toughness, strong durability and long service life. 4Ergonomic Design: The handle is made of plastic material, nonslip, wearproof, comfortable to use and can greatly improve work efficiency. 5Strong Practicability: The thread repair tool is a practical and handy tool ideal for auto mechanics, handyman jobs, drill machine and diy repair projects.