Black Swan's Four-In-One Tube Cleaning & Fitting Brush is a unique brush that cleans the inside and outside of copper tubing and fittings for 1/2" and 3/4" sizes prior to soldering. Brushes are made from high carbon steel and are housed in a durable plastic casing. When the brushes are no longer useful a replacement kit can be purchased that contains all four brushes.
Can also be used to clean battery terminals.