Check the listing for details. 6Pcs Air Conditioner Copper Tube Expander Swaging Tool Drill Bit Set Flaring. Color: black, Condition: New. Listed at 12.45 USD. Features:This product is made of fine material, it has a long life, you do not need to change it often.When you need to install the air conditioners, you can use it to extend the copper pipes and then connect the two pipes together.It is very easy to use and can save your time and energy.It is small so you can take it anywhere you want to use it.Please note that this tool must be installed on the electric hand drill to use it.There are 6 sizes to choose from, you can use the one you want.Specifications:Material: SteelColour: BlackSize: 7/8（22.2mm), 3/4（19mm), 5/8（15.9mm), 1/2（12.7mm), 3/8（9.5mm), 1/4（6.3mm)Package size: 60 * 60 * 50 mm / 2.4 * 2.4 * 2.0 in.Package weight: 210 g / 7.4 oz.Packing List:6 * Tube Expander