This tube expander is suitable for copper pipes of various diameters from 6, 8, 10, 12, 16, 18, 22 mm. Precision CNC machined metal construction, resistant to wear, sturdy and durable. The flat and smooth surface effectively reduces the friction of inserting the copper tube. The thickened metal handle wrapped with soft plastic sleeves and anti-slip pads greatly reduce hand fatigue. The pipe expansion die with rotation mechanism can be folded for easy carrying. Specification: Condition: Brand New Item Type: Copper Pipe Expander + Copper Pipe Deburring Tool Copper Pipe Diameter: 1/4, 5/16, 3/8, 1/2, 5/8, 3/4, 7/8 inches (6, 8, 10, 12, 16, 18, 22 mm) Instruction: 1. Internal starting expanded tube on copper tube 2. The effect of the expansion tube is rounder when using the circular motion 3. Pipe expansion completed, the copper pipe can be butt welded Method to expand the copper tube by 6mm. All other copper tubing models may not need needle nose pliers. 1. After cutting the copper tube, use the tool to make the mouth of the tube smooth. 2. Use needle-nose pliers to expand the tube a little to make it easier to insert into the expander. 3. When extending the tube, please do not force it. Gently rotate the expander. Package List: 1 x Copper Pipe Expander 1 x Tool copper pipe deburring