【Durable Material】The copper pipe expander is designed to work with PE pipes. It's an effective tool for flaring both PEX and copper pipes. This copper extension tube is made of solid stainless steel and copper, making it durable and long-lasting. 【Pipe Size】Copper pipe expander with copper flaring tool (diameters: 1/4", 5/16", 3/8", 1/2", 5/8", 3/4", 7/8"). 【Hinge Design】The copper extension tube is hinged to prevent the handle from wobbling and ensure stable operation. 【Widely Used】This plumbing tool is widely used in the maintenance of refrigeration equipment such as refrigerators, air conditioners, and freezers. 【Easy to Use】The refrigeration flaring tool is Lightweight and compact, with a spring-loaded design for easy handling.