- HIGH QUALITY COPPER PIPE EXPANDER: Crafted from premium materials, our copper pipe expander is built for durability and long-lasting performance, making it an essential tool for any cooling repair job. - BROAD COMPATIBILITY: Designed to accommodate a wide range of pipe sizes from 10mm to 42mm, our expander works seamlessly with both imperial and metric dimensions. The included 11 curved heads cater to various specifications, ensuring versatility for different tasks. - USER-FRIENDLY DESIGN: Our copper pipe expander features an intuitive design, allowing for quick and effortless pipe expansion. Whether you are a professional technician or a DIY enthusiast, this tool is suitable for woodworking and other applications, enhancing your toolbox's utility. - PRECISE PERFORMANCE: Trust our copper pipe expander for smooth and accurate pipe expansion, ensuring a tight and secure fit. This not only improves the efficiency of your cooling system but also reduces the risk of leaks, promoting optimal performance. Use Cases: 1. Perfect for HVAC technicians performing repairs on air conditioning units, ensuring reliable connections without the worry of leaks. 2. Ideal for plumbing professionals needing precise expansion of copper pipes to fit various fixtures seamlessly and securely. 3. Excellent for DIY projects where copper piping is necessary, providing an easy way to make custom fittings for home improvements.