Description: 【Broad Compatibility】: Effortlessly attach the Brass Knurled Nuts to your compatible soldering iron head. Supporting a wide range of 3D printing applications, improve 3D printing assembly efficiency, and is particularly suitable for DIY and repair work 【Accurate Heat Press for Secure Inserts】: The meticulously Soldering Iron Tips uses a combination of heat and pressure to flawlessly embed threaded nuts into your prints, ensuring a strong, keeping from any loosening or shifting for prints stable 【Complete Kit】: This Embedded Insertion Tip Adapter Kit includes a adapter and 7 interchangeable insertion tip heads, satisfying the needs of different application scenarios, whether it is routine operations or special requirements, providing diverse choices to ensure efficient work 【Quality Construction】: Crafted from premium, wear resistant brass, these Tip heads are built to last. They offer great high temperature resistant performance, capable of withstanding prolonged, intensive use, extending service life and improving overall work efficiency 【Simple Installation】: The press head connects directly to your compatible soldering iron with no complex setup required. Its intuitive design makes it easy for both beginners and experienced users to master Size Chart:14.5cm/5.71inch, for T12 Package Includes: 1 heat insert installation tool 7 soldering tips Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.