Made of zinc-iron alloy materials, strong and solid, durable and long lasting This manual expander tool can be used to expand 4/6/7.5 copper tubes /10". Diameter /13.5/ 15/17/18/22mm (0.16", 0.24", 0.3", 0.39", 0.53", 0.59", 0 .67", 0.71", 0.87") Comfortable and lightweight spring design, make work more tiring Hinge design: can prevent the handle from swing and ensure stable operation It is widely used in the maintenance of refrigerators, air conditioners, freezers and other household appliance refrigeration systems Product Description Features: This regulator is made of zinc-iron alloy, it is strong and strong, ensuring durability and longevity. p> Handle design ergonomic with rough surface, comfortable to hold and non-slip. With this tool you can make copper tubes between 6 and 22 mm in diameter. diameter. Hinged lighter to prevent handle movement and ensure smooth and stable operation. Easy to use, a simple yet effective hand tool for cleaning, maintenance and repairing air conditioners. Specification: 1.Condition: 100% Brand New 2.Material: Zinc-Iron Alloy 3. Color: As shown in the picture 4. Handle length: approx. 155mm/6.1inch 5. Tube Expander Length: Approx. 154mm/6.06inch 6. Package weight: approx. 400g 7. Applicable: copper pipe, aluminum pipe and thin-walled stainless steel pipe Package Content: 1 x Tube Expander Note : 1. Please allow 1-2mm error due to manual measurement. 2. Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same.