It cleans both the inner and outer surfaces of 1/2 inch and 3/4 inch joints and pipes, and can remove debris from pipe threads in preparation for brazing. Comfortable Handle: The 4 in 1 pipe cleaning tool is ergonomically designed with a grip structure that makes it very comfortable to use and provides a firm hold, reducing slippage and improving work efficiency during extended use. Wide Application: It can be used to remove rust and paint stains on steel parts, machinery, and raw metal surfaces. Suitable for cleaning, polishing, deburring, and surface preparation of copper pipes or metal components. Easily restores copper pipes to a clean, like-new condition. Durable Materials: The 4 in 1 pipe cleaning tool features bristles made of stainless steel, offering rust and corrosion resistance while maintaining bristle integrity. Resists wear, flattening, and deformation, effectively cleaning metal pipes without damaging the surface or fine details of copper pipes. Convenient to Carry: Lightweight, compact design makes the tool easy to store and transport. Takes up minimal space in your toolbox and is ideal for on-the-go use. Specifications: Size: Length: 7.9 inches; Height: 0.87 inches; Large hole diameter: 0.79 inches; Small hole diameter: 0.5 inches Color: Black Material: Steel wire, stainless steel Package Contents: 4 x Pipe cleaners Note: Light and display settings may cause slight color variations compared to the actual item. Measurement may vary by +/- 1-3 cm.