1、Efficient Tube Reaming: Features an electric expansion head design that quickly and accurately enlarges the diameter of copper tubes in air conditioners, improving work efficiency. 2、Easy Operation: With hexagonal handle design ensures a secure fit on handheld tools (not included), preventing slippage and enhancing safety during operation. 3、Heavy Duty Made: Made with high strength metal, sturdy and durable. It is resistant to deformation even after prolonged use, ensuring a long lifespan. 4、Wide Application: Used for expanding copper tubes, creates tight connections between two tubes, can be used in residential, commercial, and industrial air conditioning systems. 5、6 Sizes Included: Comes with six different sized expanders, allowing for the expansion of various diameters of copper tubes, reliable designed could prevent rupture and leakage. 6 x Air Conditioner Tube Reamer Item Type: Air Conditioner Tube ReamerMaterial: Metal