Features: Elevates your 3D printing and soldering projects with our Heat Insert Nut Iron Tip Kit, featuring array of size from 2 to 8 for seamlessly integration into plastic components. Crafted from high conductivity brass, this set includes interchangeables tip compatible for 3D Printer, ensuring precise and secure embedding of threaded inserts with out damaging the plastic. Suitable for hobbyists, enthusiasts, and professionals in electronics and 3D printing, look to improve their work with reliability and efficient tool. Brass material, good heat conductions, end-face contact, prevents the nut from skewing, and is convenient and quick to embedding the nut into the plastic part Hand-twist knurled joints, you can disassemble the head joints at any time in the cooling state to replace different types of threaded indenters Specifications: Material:Metal Length:Approx.25mm/0.98inch for 3D Printer, Package Includes: 1set Heat Insert Nut Iron Tip note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.