This pipe expander is suitable for copper pipes with different diameters of 6, 8, 10, 12, 16, 18, 22 mm. Precision CNC machined metal construction, wear-resistant, strong and durable. The flat and smooth surface effectively reduces the friction when inserting the copper pipe. Thickened metal handle wrapped with soft non-slip plastic sleeves, greatly reduce hand fatigue. The tube expander die with rotating mechanism can be folded for easy transport. Specification: Condition: Brand New Item Type: Copper Pipe Expander + Copper Pipe Deburring Tool Copper Pipe Diameters: 1\/4, 5\/16, 3\/8, 1\/2, 5\/8, 3\/4, 7\/8 inch (6, 8, 10, 12, 16, 18, 22mm) < \/p> Instructions: 1. Internal starter expansion tube on copper tubing 2. The action of the expansion tube is smoother when using the circular motion 3. Pipe expansion completed, copper pipe can be butt welded Method of enlarging the copper tube by 6 mm. All other copper pipe models may not require needle nose pliers. 1. After cutting the copper pipe, use the tool to make the mouth of the pipe smooth. 2. Use needle nose pliers to widen the tubing slightly to make it easier to insert into the expander. 3. Please do not use force when pulling out the hose. Gently twist the expander. Package list: 1 x copper tube expander 1 x copper pipe deburring tool