JoyTube Copper Pipe Tube Expander Tool Manual Swaging Hand Tool Refrigeration Tube Expanding Tool kit 1/4” to 7/8” Quality Materials Forging by high carbon steel, fixed handle, strong support.With the human body engineering mechanics handle,grip comfortable. Simple To Use Our copper pipe expanders are Simple , effective soft, easy to use. The Size Of Expanded Tubes: 4mm, 1/4"-6mm, 5/16"-7.5mm, 3/8"-10mm, 13.5mm, 15mm, 17mm, 18mm, 7/8"- 22mm. Features Model: ST-22 Size: 155mm*145mm Weight: 350g/12.3oz Material: stainless steel Copper Pipe Expansion Example Step One 1: Use the plier expand the brass Step Two And Three 2: Romove the burr from the copper pipe 3: Put the tube expander into brass and slow rolation Step Four And Five 4: When the handle is closed together it is finished 5: Docking copper pipe The Scope Of The Tube Expander: Air conditioning maintenance,Pipeline maintenance. Built-in strong return spring, you don't need to press the handle very hard when expanding the tube