General description This Copper Pipe Tube Expander is a manual expanding tool designed for various tubes, particularly useful for air conditioner installation and maintenance. Made from a durable zinc-iron alloy, this tool is solid and sturdy, ensuring a long service life. Its practical and lightweight design, along with a spring mechanism, allows for effortless operation. The hinge design prevents handle wobble, ensuring stable and reliable performance during use. Technical specifications Material: Zinc-iron alloy Handle Length: Approx. 155mm / 6.1 inches Expander Length: Approx. 154mm / 6.06 inches Applicable Pipe Diameters: 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") Compatible with copper pipe, aluminum pipe, and thin-walled stainless steel pipe Usage This tool is ideal for expanding copper pipes during the maintenance and repair of refrigeration equipment, including refrigerators and air conditioners. Its