Copper Tube Expander | Hand Expanding Tool Universal Hand Refrigeration Tools Copper Tube Changing Tool Tube ExpanderDescription: This item is made of strong, solid and strong stainless steel, ensuring durability and longevity. Ergonomically engineered handle with thick surface, comfortable to hold and non slip. This tool can be used to expand copper pipes with a diameter between 6 and 22mm. Hinge design to prevent swinging of the handle, ensuring stable operation. Easy to use, a simple but effective hand tool for air conditioning maintenance and repair.