Do it 1/2 In. Outside Tube Fitting Brush is a handy tool designed for cleaning and preparing the outside of tubes or pipes for fitting connections. It features an easy-to-grip plastic handle, making it comfortable to hold and use during the cleaning process. The bristles are made of high-carbon crimped steel, which allows for effective and efficient cleaning of the tube's exterior surface. This brush is commonly used in plumbing and HVAC applications to ensure a proper and secure fit between tubes and fittings, helping to maintain the integrity of the connections and prevent leaks. Model Number: 92433