Brass Material: Offers high thermal conductivity for uniform heating, ensuring smooth extrusion and improved interlayer adhesion strength and print quality. Good Performance: Suitable for high-temperature filament printing with a maximum operating temperature of 450°C, enhancing durability. 5-Piece Set: Features M6 standard thread, 16.8mm length, and compatibility with 1.75mm filament, ideal for reliable 3D printing use. Strong Compatibility: Works with a wide range of FDM materials including PLA, ABS, PETG, TPE, TPU, PC, and high-temperature filaments such as PEEK, PEKK, PEI, PSU, and PPSU. Application Scope: Designed for use with Creativity End 5 S1, End 7 3D printers, and Spider 1.0 hot end kits. Item Type: 3D Printer Extruder Nozzle Material: Chromium Zirconium Copper Filament Diameter: Approx. 1.75mm / 0.07in Screw: M6 Thread Maximum Printing Temperature: 450°C Thermal Conductivity: 330 W/m·K Hardness: 6.0 Mohs Package List: 5 x 3D Printer Extruder Nozzle