The MK8 Hardened Steel Nozzle Extruder Head is a 3D printer accessory designed for Ender3/V2/PRO CR10 3D printers. It is made of hardened steel with an overall hardness of 50 degrees (surface hardness 55-60 degrees). The nozzle has been treated with high-temperature carburizing and hard treatment, resulting in super wear resistance, heat resistance, high hardness, and high toughness. This nozzle has a long service life and is compatible with most high-temperature printing consumables available on the market. The MK8 Hardened Steel Nozzle features clear appearance lettering and surface lettering, making it easy to distinguish and ensuring quality. The joint is tight and the contact surface is smooth and flat, effectively solving the problem of material leakage. The cutting chamfer reduces resistance and improves the blanking process. The overall hardening treatment of the nozzle provides high temperature resistance, corrosion resistance, and smoother silk output. With a variety of specifications to choose from, you can find the perfect nozzle for your printing needs. Package Included: 1 x Nozzle Key Features: Made of hardened steel with super wear resistance High-temperature carburizing and hard treatment for heat resistance and high hardness Long service life and compatibility with most high-temperature printing consumables Clear appearance lettering and surface lettering for easy identification Tight joint and smooth contact surface to prevent material leakage Cutting chamfer reduces resistance and improves blanking Overall hardening treatment for high temperature resistance and corrosion resistance Available in various specifications to suit different printing needs Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia