Specification: Condition: Brand New Item Type: Copper Pipe Expander Copper Pipe Diameter: 1/4, 5/16, 3/8, 1/2, 5/8, 3/4, 7/8 inch (6, 8, 10, 12, 16, 18, 22mm) Instruction: 1. Internal start expanded tube on copper tube 2. The effect of the expansion tube is more round when using circular motion 3. Pipe expanding completed, copper pipe can butt welding Tips: 1. After cutting the copper tube, use debur tool to make the mouth of the tube smooth. 2. Use sharp-nose pliers to expand the tube a little bit to make it easier to put into the expander. 3. When expanding the tube, please dont force it. Rotate the expander softly. Package List: 1 x Copper Pipe Expander