25pcs Recoil Repair Kit for Thread Repair Assembly KitOOTDTYo Automatic Repair Restoring Broken Threads Easy to Use 40JEchs: 100% Brand New and High Quality Made of high quality high-speed steel, sturdy and durable to use. It can be used in daily repair, automobile repair, drill, etc. Ideal for restoring damaged threads, suitable for engine repair and other automotive. Applications for steel, cast iron and aluminium. Thread repair kit, including thread inserts, drill bit, tap, insert installation, tip breaker tool, allows for smooth repair. Easy to use, easy to carry, durable, non-rust, corrosion-resistant and wear-resistant. Specification: Material: High Speed SteelType: M3/M4Length: 13.5cm/5.31inPackage Includes: 25pcs Metric Thread Repair Tools/SetNote: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.