Feature: 1. [Compatible Printer Models] These 3D printer nozzles are compatible with for Ender 3 V3 SE, for Ender 5, for Ender 7, for Ender 5 S1, perfect for replacing old or damaged nozzles. 2. [Hardened Steel Made] The M6 hardened steel nozzle, featuring advanced heat treatment and superior oxidation resistance, ensures extended nozzle longevity and reliable performance. 3. [High Heat Resistance] With a maximum temperature endurance of up to 450℃, the hardened steel nozzle guarantees rapid high temperature filament heating and continuous printing. 4. [Smoother Extrusion] The interior of the nozzle is smoothly without burr, guaranteeing accurate and smoother extrusion for both regular filaments and more challenging materials such as carbon and glass fibers. 5. [Wide Material Compatibility] These 3D printer extruder nozzles can handle a broad array of for FDM materials including PLA, ABS, PETG, TPE, TPU, PC, and composite filaments with abrasives such as carbon fiber, glass fiber, steel, wood, boron carbide, tungsten, and phosphor pigment. Specification: Item Type: 3D Printer Nozzle Material: Hardened Steel Filament Diameter: 1.75mm Thread: M6 Highest Printing Temperature: 450℃ Application: for Ender 3 V3 SE, for Ender 5, for Ender 7, for Ender 5 S1. Package List: 3 x 3D Printer Nozzle