Upgrade your 3D printing reliability with the MK8 hardened steel nozzle, built for high-temperature printing and long-lasting wear resistance. The 0.4mm variant delivers balanced detail and smooth extrusion, making it a solid upgrade for popular desktop setups such as MakerBot, Creality, CR-10, Ender 3, and Ender 3 Pro.

Key benefits

• Hardened steel (or die steel) construction for exceptional wear resistance and extended nozzle life, especially in demanding printing tasks.
• Advanced treatment: overall hardening with carburizing and hardening, delivering high hardness alongside notable toughness.
• Process craftsmanship: thermoforming and hardening production results in a nozzle that maintains precision under high temperatures.
• Wide diameter options: available in 0.2/0.3/0.4/0.5/0.6/0.8/1.0mm, with 0.4mm as a proven standard for good detail and reliable flow.
• Filament compatibility: designed for 1.75mm filament, a common choice across most desktop printers.
• High-temperature readiness: engineered to withstand elevated print temperatures while maintaining consistent extrusion quality.
• Convenient installation: includes a 6mm spanner for easy tightening, and the nozzle is designed for straightforward replacement with an open-mouth design.

What’s included

• 1 hardened steel MK8 nozzle
• 1x 6mm spanner

Best uses and reasons to choose

Choose this nozzle to reduce wear-related downtime when printing with high-temperature materials or longer print runs. The 0.4mm size offers a versatile balance between speed and detail, delivering strong layer adhesion and smooth surface finish while maintaining reliable extrusion. With its high-hardness, high-toughness profile, this nozzle is built to stand up to demanding workloads across compatible 3D printers.