General description This Manual Copper Tube Expander is a reliable tool designed for expanding copper pipes. Made from durable stainless steel and copper, it ensures a long service life and stable operation. Technical specifications Material: Stainless steel and copper Expandable Copper Pipe Sleeve Diameter: 6mm, 8mm, 10mm, 12mm, 16mm, 19mm, 22mm (1/4, 5/16, 3/8, 1/2, 5/8, 3/4, 7/8) Installation Hinge design prevents handle wobbling for stable operation Usage Ideal for maintenance of refrigeration equipment such as refrigerators, air conditioners, and freezers Lightweight and compact design with a spring mechanism for ease of use