Features: 1) A variety of connectors, enabling the embedding of various M2 (up to M2.5), M3, M4, M5, M6 (1/4 inch), and hot-melt nuts 2) Compatible with standard 936 universal soldering iron tips, convenient and practical (compatible models include Hakko FX-888D) 3) Made of copper material for excellent thermal conductivity; flat end face design ensures even contact, prevents nut misalignment, and allows quick embedding into plastic parts 4) Compared to similar indenters, our design allows embedding at a shorter distance, minimizing damage to plastic parts. The tip is less likely to harm the plastic and can be inserted to an optimal depth 5) Integrated design provides enhanced structural strength and improved load-bearing capacity Name: Integrated Hot Melt Nut Indenter Application: Interchangeable with standard 936 universal soldering iron tips; used for installing M2 (up to M2.5), M3, M4, M5, M6 (1/4 inch), and other hot-melt nuts or inserts; commonly used for embedding copper nuts in 3D printed parts or plastic components Processing Technology and Color: CNC precision turning Material: Copper Color: Gold Package Contents: 1 x Nut embedding indenter kit Note: The package includes only the items listed above. Other accessories are not included. Note: Lighting conditions and monitor settings may cause slight variations in color between the product image and the actual item. Measurement error allowance is +/- 1-3 cm.