The needle guide (airbrush needle/nozzle guide) is one of the most sensitive and important parts of an airbrush, ensuring smooth and even paint flow. It serves as a guide for the needle and helps maintain proper centering during spraying.
 
The needle guide must be maintained with great care – it should be cleaned very gently, without applying pressure, bending, or causing any damage. Even the slightest deformation can disrupt paint flow or cause uneven spraying. It is also crucial not to lose or damage the small rubber ring on the guide – it ensures proper sealing and correct component connection.
 
It is very important that the inner diameter of the needle guide precisely matches the thickness of the needle being used. Even a minimal mismatch can affect paint flow and the final spray result. For this reason, when changing the needle, it is essential to ensure that the needle guide is also matched to the correct diameter.