Long Lasting Construction: Crafted from heavyduty aluminum alloy, this manual pipe expander is solid and sturdy, ensuring longevity and reliable performance for demanding HVAC and refrigeration maintenance tasks. Tool Set: This copper pipe expander kit includes everything needed for efficient tube swaging, making it a suitable tool for air conditioning systems, freezers, and other refrigeration equipment. Effortless Operation: Featuring an ergonomic handle with coarse antislip grip and springassisted mechanism, this pipe swaging tool requires minimal effort while providing maximum expansion. Wide Compatibility: Designed to work with brass tubes, copper pipes, aluminum tubing, thinwall stainless steel pipes, and plastic tubing, this general tube expander handles multiple materials with consistent results. Use scenarios: Onsite HVAC installations and repairs involving copper, brass, or aluminum tubing, such as swaging refrigerant lines for air conditioning systems. Refrigeration maintenance on freezers, coolers, and other equipment that require reliable tube expansion for leak connections. Service calls where multiple material types are encountered (brass, copper, aluminum, thinwall stainless steel, and plastic tubing), providing a versatile, onetool solution for diverse tube expansion tasks.