Features: This product is made of high-quality material, ensuring a long service life and reducing the need for frequent replacements. It is designed for use in air conditioning installations, allowing you to expand copper pipes and connect two pipes efficiently. The tool is easy to use, helping save time and effort during installation. Compact in size, it is portable and convenient to carry to different work locations. Please note: This tool must be installed on an electric hand drill for operation. Available in 6 sizes, allowing you to choose the one that best fits your needs. Specifications: Material: Steel Color: Black Sizes: 7/8" (22.2mm), 3/4" (19mm), 5/8" (15.9mm), 1/2" (12.7mm), 3/8" (9.5mm), 1/4" (6.3mm) Package Dimensions: 60 x 60 x 50mm (2.4 x 2.4 x 2.0 inches) Package Weight: 210g (7.4 ounces) Packing List: 6 x Pipe Expanders