Features:1. It can be used to expand copper pipe with diameter 4mm,6mm,7.5mm,10mm,13.5mm,15mm,17mm,18mm,22mm,2. Double skull-shaped, adapt to narrow space3. Built-in reset spring, comfortable and lightweight4. The length of each section is scientifically calculated. Ensure the accuracy of use,5. It is widely used in the maintenance of refrigerators, air conditioners, freezers and other refrigeration equipment. Specification: Name: Manual Pipe Expander Machine Pipe Diameter Range: 4- 22MM Material: Zinc Iron Alloy Color: Silver Handle Length: Approx. 154mm/6.06 inch Tube Expander Length: Approx. 155mm/6.1 inch Application: Copper Pipe Pipe Expander Hand Expansion Tool Universal Hand Refrigeration Tools Package Included:1 x Pipe Expander Thank you for your attention, you can to get more details about the goods. Have a nice day!