This E3D brass nozzle set contains 3 Revo nozzles with a diameter of 0.4mm in red. They are suitable for 1.75mm filament and the E3D RapidChange Revo system. You can quickly and easily adjust your nozzle diameter at room temperature. You can easily change them without using extra tools.
The E3D Revo nozzle has its own heatbreak. This means that it is not necessary to tighten the nozzle at a high temperature. Because each Revo nozzle diameter has its own colour, you can quickly see which nozzle diameter you have in the hotend.