Features Made of stainless steel with good rust and corrosion resistance. The use of thread screw sleeves for conversion of threaded holes mm---inch is convenient and fast. Imported equipment or inch mechanical thread is damaged and needs to be replaced with mm thread due to the supply of spare parts. The thread screw set is placed in the screw hole of the workpiece, such as aluminum alloy, to form a standard internal thread with high strength, wear resistance and high precision. Typical applications: high voltage appliance, microwave communication, automotive. All accessories are built in a box for convenient transport and transport. In the event of an error in thread or repair of a damaged internal threaded hole, the threaded hole can be repaired economically and effectively by using a threaded sleeve as a means of repair. The same screws can also be used after repair. Specification: Item Type: Threaded Sleeve Material: stainless steel Threaded insert size: M14x1,5 Length: 2D Package List:1 x Spiral Drill 1 screw tap 1 x Key 1 x Break Pin Tool 1 x hex wrench 10 x thread repair insert Note:Instructions Drill holes using a matching drill. Use threaded (special) tapping, the tapping depth should exceed the mounting length of the screw sleeve. Insert the wire screw into the mounting key with the tail down. Turn the handle of the wrench to screw the thread screw into the threaded hole. Use a break pin tool to align the mounting handle (tail) with a hammer to hit the punching tool and the tail handle can be removed. When there is a problem with the installation of the threaded screw sleeve (like a jumper), the threaded sleeve can be removed by the thread threading tool. Please note that the new type and the old type of this product will be sent randomly, and make sure you won't mind before ordering. Package List 1 x Spiral Drill 1 x Screw Tap 1 x Wrench 1 x Break Pin Tool 1 x Hex Wrench 10 x Thread Repair Insert