General description This AlwaysH Manual Copper Tube Expander is a practical and lightweight tool designed for expanding copper pipes. Made from a durable zinc-iron alloy, it ensures a long service life and reliable performance. The tool features a spring design for easier operation and a hinge design that prevents handle swing, ensuring stable use. Technical specifications Material: Zinc-iron alloy Pipe diameter compatibility: 4mm, 6mm, 7.5mm, 10mm, 13.5mm, 15mm, 17mm, 18mm, 22mm (0.16", 0.24", 0.3", 0.39", 0.53", 0.59", 0.67", 0.71", 0.87") Usage This tool is widely used for the maintenance and repair of refrigeration equipment, including refrigerators, air conditioners, and freezers.