- METRIC & SAE Thread Repair Kit: This comprehensive helicoil kit includes 263 pieces, featuring drill bits, screw taps, wire thread inserts, installation tools, tang break-off tools, and two thread gauges. It is designed for seamless repairs, covering both SAE (1/4", 5/16", 3/8", 7/16", and 1/2") and METRIC sizes (M5, M6, M8, M10, and M12) to meet your critical repair needs. - High-Quality Steel: Our thread restorer kit is made from premium steel with a titanium coating, ensuring exceptional durability and impact resistance. Each component is heat-treated for superior strength and longevity, guaranteeing precise performance over time. - Versatile Usage: This rethreading kit is compatible with various materials, including aluminum, iron, carbon steel, bronze, and magnesium. It is ideal for automotive repairs and plumbing applications, making it a versatile addition to your toolkit. - Easy to Use: Equipped with a 135° drill bit and a break-off tool, this kit facilitates professional-grade thread repairs. It efficiently drills, taps, inserts coils, and breaks off cuts, ensuring quick and effective thread restoration. The rubber-coated handle on the insertion tool provides comfort and a secure grip during use. Use scenarios: 1. Repair stripped threads in automotive components to ensure secure connections and prevent leaks. 2. Restore damaged threads in plumbing fixtures, allowing for reliable sealing and functionality. 3. Revive worn threads in metal parts, extending their usability and performance in various applications.