Features: brand new and high quality Universal pipe expander is used to expand copper pipe to expand copper pipe for easy connection The manual expansion tool is made of steel, which is rust-resistant and corrosion-resistant, not easy to be damaged, and can be used for a long for time Air conditioner repair tool is easy to use, heat the copper pipe, insert the expander, tap the expander with the tool Product specification of air conditioner maintenance extension tool: 1/4", 5/16", 3/8", 1/2", 5/8", easy to store and use, does not take up much space The tube expander is very suitable for the maintenance of refrigeration equipment machinery such as refrigerators, freezers, air conditioners, etc. Specifications: Place of Origin: CN (Origin) DIY Supplies: Plumbing Material: 45# steel Application: Household Tool Set Product use: used for expansion and expansion of copper pipes, refrigeration pipes, aluminum pipes and other metal pipes with low hardness Product Specifications: 1/4", 5/16", 3/8", 1/2", 5/8" Note: 1.Please allow 1-2mm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1xAir Conditioner Manual Copper Pipe Expander