Short nozzle with small hole diameter (3mm)
The short nozzle with the small hole (3 mm diameter) is primarily used for cutting applications that produce and excess of smoke, such as wood. Because of its restricted opening, the airflow is concentrated and directed into the kerf, blowing any emerging smoke or cutting gases away.
This nozzle is not compatible for dust-intensive engraving applications, such as stamp rubber or plastics for example. Any dust produced will settle quicker at the nozzle opening and can block it, resulting in a burn hole on the lens.