This copper tube expander is designed for use with PE tubing. It's an efficient tool for flaring PE and copper tubing. Made from solid stainless steel and copper for durability and a long lifespan. Tube Sizes: Expands copper tubes with diameters of 6mm, 8mm, 10mm, 12mm, 16mm, 19mm, 22mm (1/4", 5/16", 3/8", 1/2", 5/8", 3/4", 7/8"). Hinge Design: The copper tube expander features a hinged design to prevent handle wobble and ensure stable operation. Wide Application: This plumbing tool is widely used in the maintenance of refrigeration equipment such as refrigerators, air conditioners, and freezers. Easy to Use: Lightweight and compact, with a spring-loaded design for easier work. Product Description: Copper Tube Expander Hand Tool 100% Brand New Stainless Steel Color: As shown in the image Handle Length: Approx. 155mm Expander Length: Approx. 158mm / 6.2 inches Package Weight: Approx. 380g Package Includes: 1 x Tube Expander Easy to Handle Tube Diameter