PRACTICAL Maintain the ductility of copper pipe during the expansion process to prevent cracks and leaks. APPLICATION Mainly used to expand copper pipes, to make two pipes tightly connected when installing air conditioning. MATERIALMade of bearing steel, with high yield strength and contact fatigue resistance, it is not easy to break. deform after long-term use. HEXAGONAL HANDLE DESIGN It is not easy to fall off when installed on a hand tool, and the operation is safer. FITSThere are totally 6 different sizes of expanders, suitable for expanding different diameters of air conditioning copper pipes. Specification: 7/8 inch (about 22.2 mm/0.9 inch), 3/4 inch (approx. 19 mm/0.75 inch), 5/8 inch (approx. 15.9 mm/0.6 inch), 1/2 inch (approx. 12.7 mm /0.5 inch) inch), 3/8 inch (about 9.5mm/0.4 inch), 1/4 inch (about 6.3mm/0.25 inch) Package List:6 x Tube Expanders Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.