This Item Is Made Of Heavy Duty Stainless Steel, Solid And Sturdy, Ensuring Durability And Longevity. Ergonomic Engineering Designed Handle With Coarse Surface, Comfortable To Hold And AntiSlip. This Tool Can Be Use To Expand Copper Pipe With Diameter Between 6-22Mm. Hinge Design To Avoid Swing Of Handle, Ensuring Stable Operation. Easy To Use, An Simple But Effective Hand Tool For Air Conditioner Maintenance And Repairing.&Nbsp;