Print carbon fiber and other abrasive materials with ease using our custom ruby tipped printer nozzles. We tested hundreds of designs to ensure we deliver the best Ruby Nozzle possible! It provides the ultimate thermal conductivity of brass with the wear resistance of a ruby! Highlights: Abrasion Resistant Ruby Tip High Thermal Conductivity Polished Internal Body Tight Hole Tolerance (±0.05mm) Max Temp 550°C Because the majority of the nozzle is brass, you will likely not have to make any changes to your printer settings. Just swap out the nozzle and you are ready to go!