Short nozzle with small hole diameter (3mm)
The short nozzle with the small hole diameter (3mm) is mainly used laser cutting smoky materials such as wood. Due to the small opening, the concentrated airflow is directed into the kerf, blowing away emerging smoke and gases produced during cutting.
This nozzle is less suitable for engraving dust-intensive materials like plastics or stamp rubbers, as the engraving dust settles faster at the opening of the nozzle, which can block it. A blocked nozzle can result in a hole burnt into the lens.