1. High precision: The inner wall of the nozzle of the 3D printer is smooth and free of burrs, and the viscosity coefficient is small. The extruder nozzle diameter error is less than 0.02mm, providing you with accurate and smooth extrusion 2. High-quality materials: MK8 nozzles are hard hot-formed high-temperature carbonized steel, which is harder than ordinary brass nozzles. Hardened stainless steel material is and has good heat resistance, resistance and wear resistance 3. Good performance: The toughness and hardness of this MK8 nozzle are impressive. It is not only suitable for common 1.75mm 3D printer consumables, but also suitable for printing consumables such as carbon fiber and glass fiber. 4. Wide compatibility: These high temperature nozzles are compatible with the MK8 hot end -2/ -3/ -3 pro/ -5 of the 3D printer, and also compatible with the -10 all-metal hot end, Prusai 3, Anet A8, Reprap, etc. 5. : no burr on the inner wall of the nozzle, good texture The viscosity coefficient is small, and the extruder nozzle diameter error is smaller, providing accurate and smooth extrusion. Applicable models: -2/ -3/ -3 pro/ -5 and other 3D printers notes: 1. After replacing the print , re-calibrate the distance between the print and the building board to the print quality of the parts. 2. Any related and models mentioned above are only used to prove compatibility. Colour:Black+gold Material:metal Size: Nozzle size: 0.4mm 0.5mm Cleaning needle size: 0.4mm weight: 65g Types: B Package Contents: 2 x 0.4mmMK8 hardened steel nozzles 4 x 0.4mm stainless steel nozzles 4 x 0.5mm stainless steel nozzles 10 x 0.4mm brass nozzles 5 x 0.4mm nozzle eaning needles (with storage cylinder, the color of the cap is shown in the figure) Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.