This hotend with hardened steel nozzle is ideal for printing with filaments that have added particles, such as glass or carbon fibers. In addition, the printing time is reduced because the diameter is larger than the standard 0.4 mm nozzle. This makes this size a good choice for 3D printing larger parts, functional parts, industrial parts and 3D models that need to be strong. The nozzle is 0.4 mm and is suitable for the A1 series 3D printers from Bambu Lab.