Feature:1. Restorer Tool: Ideal for repairing old, rusted nuts, bolts and screws with damaged threads as well as creating new threads.2. Practical Use: Can be used on cast iron, steel, aluminium alloy, copper and many metal materials, also for car maintenance.3. 15Pcs in Pack: There are 7pcs thread tap, 7pcs thread die and 1pc thread file with various sizes, meeting your work needs.4. Good Material: Made of high quality carbon steel material with high strength and hardness, rustproof and durable for using.5. Easy Working: Hex design largely simplifies the operation with socket and wrench, while the box makes the carrying easier.Specification:Item Type: Metric Thread Restorer7Pcs Metric Thread Die Size: M6-1.00, M8-1.25, M10-1.25, M10-1.50, M12-1.25, M12-1.50, M12-1.757Pcs Metric Thread Tap Size: M6-1.00, M8-1.25, M10-1.25, M10-1.50, M12-1.25, M12-1.50, M12-1.758 Pitches of the 1Pcs Metric Thread: 0.75, 1.00, 1.25, 1.50, 1.75, 2.00, 2.50, 3.00.Package List:1 x 15Pcs Metric Thread Restorer Kit1 x Storage Box