General description The 5-16mm Universal Pipe Expander is designed for expanding copper trumpet mouth pipes, making it an essential tool for air conditioning and refrigeration applications. This flaring tool is suitable for stainless steel, thin wall copper tubes, and aluminum tubes, ensuring versatility and efficiency in various tasks. Technical specifications Condition: 100% Brand New Material: 45# Steel Hole Standard: Approx. 5~16mm / 0.2~0.6in Usage Easy to use, providing effective labor-saving benefits. Meets a full range of hole standards to accommodate different customer needs.