This T-shaped connector features a clever design with a stepped tapered structure, where the diameter gradually decreases at the top to ensure a secure connection. The inner diameter of the bottom ring interface is 3.00 mm, the outer diameter is 2.50 mm, and with a thread depth of 2.00 mm, it fits perfectly with common 3D-printed components. Its metal-like surface finish enhances both durability and appearance, making it suitable for mechanical assembly, model expansion, and more — an ideal choice for DIY enthusiasts and professional users alike.