These nozzles are compatible with the Dragon Hot-End. They are made from an all-metal kit and have a high temperature resistance of up to 500 ℃. The ultra-thin wall thickness of just 0.1 mm provides excellent thermal insulation. A reinforced support structure ensures that the thermal protection sleeve remains intact even under external force. Thanks to the stable structure of the integrated frame, the nozzle can be easily replaced without having to touch the heating block. The internal surface roughness of the nozzle and the heating block is Ra 0.4, which allows for a more uniform movement of the filament and thus a higher resolution of the prints. The ST and HF versions have the same dimensions, allowing for seamless interchangeability. The hot end is primarily made of a copper alloy, which heats up faster and dissipates heat better. The flexible, combined design ensures high compatibility.