Feature:1. Tip Specification: Provide multi specifications of brass knurled nut inserts, including M2, M2.5, M3, M4, M5, M6, M8, meet your more installation needs Fits for 936 universal soldering iron, convenient and practical2. Quick Replacement: Featuring female thread and knurled joint design, these soldering insertion tips can be disassembled at any time in a cooled state to replace different types of threaded insertion tips3. Brass Material: These hot melt nut inserts are made of brass, which has strong thermal conductivity and prevents nut deflection through end contacts, making it easy for nuts to be quickly embedded into plastic parts4. Small Insert Depth: The insertion distance of the tip is small, and it can be inserted into the interior of plastic parts to a certain depth, avoiding damage to the plastic parts after pressing, secure and practical5. Applicable Soldering Iron: Includes 2 heating head adapters, designed specifically for Pine64, for TS1100, for TS101 or 936 or 937 or 900M, which can be turned into a portable heat insertion tool to expand its functionality6. Convenient to Use: Screw installation design, easy to replace different types of soldering tips, no need to remove the entire soldering iron head, just unscrew the soldering tips and install other models7. 3D Printer Accessories: Installing brass knurled nuts into 3D printed parts allows you to easily assemble and disassemble projects without damaging the parts, providing a smoother and cleaner insertion effectSpecification:Item Type: Nut Insert Tip KitMaterial: BrassApplication: For TS100, TS101, PTS200 Soldering Iron HeadNut Insert Specification: M2, M2.5, M3, M4, M5, M6, M8.Package List:1 x Soldering Adapter8 x Replacement Tips