Durable MaterialThe copper tube expander is designed to work with PE pipes, it is an effective tool for burning PER and copper, this copper tube expander is made of solid stainless steel and copper, which is durable and has a long service life. Pipe SizeCopper Sleeve Expandable Copper Pipe Diameter 6mm, 8mm, 10mm, 12mm, 16mm, 19mm, 22mm (1/ 4inch 5/16inch 3/8inch 1/2inch 5/8inch 3/ 4inch 7/8inch ). Hinge designThe copper extension tube is hinged to prevent the handle from wobbling and ensure stable operation. Widely UsePlumbing tools are widely used in the maintenance of refrigeration equipment such as refrigerators, air conditioners and freezers. Easy to UseThe refrigeration socket pliers are lightweight and compact, with spring-loaded design, making work easier. Specification: Condition: Brand New Material: stainless steel e Handle length: approx. 155mm Tube expander length: approx. 158mm / 6.2in Package included: 1 x Tube Expander