Which tool is recommended for cleaning relay contacts?

The recommended tool for cleaning relay contacts is the burnishing tool. This tool is specifically designed to restore the surface of electrical contacts without significantly damaging them. Burnishing tools gently remove oxidation and debris from contact surfaces while preserving the integrity of the contact material. This is critical because relay contacts must maintain a good electrical connection for reliable operation.

Using a burnishing tool ensures that the contacts are cleaned in a way that enhances performance and prolongs their lifespan. Unlike other options, a burnishing tool does not risk scratching or overly abrasive cleaning which could lead to further issues like poor connectivity or premature contact wear. This makes it the best choice for maintaining relay contacts in good working condition.