Check the listing for details. 2 Pcs 0.4mm MK8 Brass PTFE Nozzles, M6 Thread 3D Printer Nozzle Accessories. Condition: New. Listed at 8.88 USD. Product Description:1. The metal nozzles are made of MK8 brass, offering excellent wear resistance, high temperature resistance, and high hardness. These nozzles are specifically designed for hot-end extruder, performing exceptionally well in high-temperature printing.2. These Hardened Nozzles feature a tapered head design, ensuring smooth filament feed, reducing resistance, preventing clogging, make sure stable extrusion, and improving printing efficiency.3. The 3d printer nozzle are machined with high-precision CNC, ensuring a smooth, burr-free inner wall, low viscosity coefficient, and tool-free replacement, ensuring a smooth printing experience from start to finish.4. The nozzle head surface is treated with a PTFE coating to prevent consumables from adhering to the nozzle head surface.