SAE & Metric Thread Repair File Set Complete Thread Repair Set Includes 3 precision-cut thread files for restoring damaged external threads on bolts, shafts, studs, and pipe ends. SAE & Metric Coverage Supports common thread sizes, including: SAE: 9, 10, 12, 16, 20, 27, 28, 32 and 11, 12, 13, 14, 16, 18, 20, 24Metric: 0.75mm, 1.0mm, 1.25mm, 1.50mm, 1.75mm, 2.00mm, 3.00mm Hardened Carbon Steel Made from hardened carbon steel with sharp, uniform cutting teeth for controlled thread restoration. Removes crushed, flattened, and rust-filled material effectively. Protective End Caps Snap-on end caps protect the cutting teeth during storage and handling while providing safer, more controlled use. Compact & Job-Ready Slim and easy to store in toolboxes, tool carts, glove boxes, and field repair kits. A practical solution for automotive, mechanical, and general maintenance work.