Clean Pipe and Fitting with Brush Fitting

What happens here

For a more precise and thorough cleaning, especially on the inside of fittings, use a specialized brush fitting. First, clean the exterior of the copper pipe again with the external brush on the fitting. Then, take the copper fitting that will be soldered onto the pipe and use the internal brush of the tool to clean its inside surface, ensuring all oxidation is removed for a strong capillary action.

Goal: Ensure comprehensive cleaning of both external pipe and internal fitting surfaces.