140Pcs Wire Threaded Insert Stainless Steel Thread Repairing Tool with Box M3-M12 Feature:1. In the event of a threading error or repair of a damaged female threaded hole, a threaded insert can be used as a means of repair to provide a cost-effective recovery of the screw hole.2. The wire threaded insert set are placed in the screw hole of the workpiece such as aluminum alloy to form a high-strength, wear-resistant, high-accuracy female thread.3. High quality stainless steel material can make sure the durability and stability of the product4. It is convenient and quick to convert metric and inch threaded holes with wire threaded inserts.5. There is a box which you can store and convenient to carrySpecification:Item Type:Threaded InsertMaterial: Stainless SteelPackage List:10 x M3x0.5x1. Threaded Insert10 x M3x0.5x2D Threaded Insert 5 x M3x0.5x3D Threaded Insert 10 x M4x0.7x1. Threaded Insert 10 x M4x0.7x2D Threaded Insert 5 x M4x0.7x3D Threaded Insert 10 x M5x0.8x1. Threaded Insert 10 x M5x0.8x2D Threaded Insert 5 x M5x0.8x3D Threaded Insert 10 x M6x1x1. Threaded Insert 10 x M6x1x2D Threaded Insert 5 x M6x1x3D Threaded Insert 10 x M8x1.25x1. Threaded Insert5 x M8x1.25x2D Threaded Insert 10 x M10x1.5x1. Threaded Insert5 x M10x1.5x2D Threaded Insert 5 x M12x1.75x1. Threaded Insert5 x M12x1.75x2D Threaded Insert About feedback If you are satisfied with our products, Pls give us 5 Stars.Your satisfaction and positive feedback is very important to us. Please leave positive feedback and 5 stars if you are satisfied with our it