Highlights Built to Last: Our thread chaser set is crafted from premium steel with a finely ground surface, HRC 55-62. This ensures excellent corrosion resistance and long-lasting durability, making it a reliable tool. 49-Piece Precision Repair Set: This rethreading tool kit is designed to trace and repair worn or damaged threads. It serves as both a thread restoration and cleaning tool, effectively removing stubborn dirt and corrosion without compromising thread integrity. The 49-piece kit includes 24 dies, 22 taps, and 3 thread files, designed to restore threads on rusted fasteners as well as bolt holes on cylinder heads, engine blocks, and other vehicle components. Comprehensive Size Color-Coded Design: The thread chaser kit includes three standards (UNF, UNC, and Metric) with color-coding for quick visual identification. UNC (Silver): 5/8"-11, 9/16"-12, 1/2"-13, 7/16"-14, 3/8"-16, 5/16"-18, 1/4"-20; UNF (Black): 5/8"-18, 9/16"-18, 1/2"-20, 7/16"-20, 3/8"-24, 5/16"-24, 1/4"-28; Metric (Gold): M14x1.5, M12x1.75, M12x1.5, M12x1.25, M11x1.5, M10x1.5, M10x1.25, M10x1.0, M8x1.25, M6x1.0. 3 Thread Files with Removable Plastic Covers: The thread files of our thread restorer kit come with removable plastic covers to shield the cutting edges and protect your hands during use. SAE Thread File 1: 9 - 10 - 12 - 16 - 20 - 27 - 28 - 32; SAE Thread File 2: 11 - 12 - 13 - 14 - 16 - 18 - 20 - 24; Metric Thread File: 0.75mm - 1.0mm - 1.25mm - 1.50mm - 1.75mm - 2.00mm - 3.00mm. Convenient Storage Case: The thread repair kit includes a carry case to keep all your thread repair tools neatly organized, and allows for easy transport from one job to the next, ensuring a hassle-free experience. Specification Brand: Details Thread Chaser Set: Your Reliable Repair Assistant This thread chaser set is an all-in-one solution with various sizes to restore stripped or damaged internal threads. Practical and portable, it's built to last. Delivering excellent results after multiple uses, it boosts maintenance efficiency, making it essential for repair professionals. This rethreading tool kit includes a complete set of accessories to restore stripped, cross-threaded, or damaged internal threads in various sizes. It prioritizes user experience, simplifying complex repairs and offering a comprehensive solution that makes every job quicker and easier. The simple repair process allows even beginners to quickly master the thread chaser kit. It provides an efficient thread repair solution for mechanics, auto repair professionals, and DIY enthusiasts alike, providing an effortless and effective experience. Made with HSS material and precision-ground surfaces, this thread restorer kit provides HRC 55-62 for superior strength and durability. The tools are designed to resist deformation, ensuring long-lasting use, making it the top choice for users seeking ultimate durability and performance. With its wide material compatibility and broad application range, this thread repair kit is the ideal choice for automotive repairs while also proving its value in precision assembly and maintenance across various industries. It demonstrates exceptional versatility and universal appeal.