Item Type: Thread Repair Kit Material: Stainless Steel Threaded Insert Standard: M16 x 1.5 (length 1.5D) Instructions: First, use a drill of matching size to drill the hole. Second, use a wire thread insert tap to thread the hole; the tapping depth must exceed the installation length of the wire thread insert. Third, place the wire thread insert into the installation wrench with the tail down, and turn the handle to screw the insert into the threaded hole. Fourth, use a punching tool to align the mounting handle (tail) and strike it with a hammer to remove the tail. Fifth, if installation issues occur (such as skipping threads), use a thread insert removal tool to take out the insert. Features: 1. Made of high-quality stainless steel for durability and long service life. 2. The threaded insert can be installed in aluminum or other workpieces to create a high-strength, high-precision standard internal thread. 3. Suitable for use in high-voltage switchgear, microwave communication equipment, automotive parts, air separation equipment, and more. 4. Complete set with all necessary accessories for easy and fast operation. 5. Enables metric to imperial thread conversion, providing convenience and versatility. Note: New and old versions of this product may be shipped randomly. Please ensure you are comfortable with this before placing your order. Package Includes: 1 x Drill Bit 1 x Tap 1 x Installation Wrench 1 x Break-off Punch 1 x Hex Wrench 6 x Threaded Inserts