【Multifunctional】:6 in 1 pipe expanding tool, suitable for expanding pipe sizes of 1/4in, 5/16" ,3/8in, 1/2in, 5/8in, 3/4in. 【 Performance】:Air conditioner copper pipe expander is made with fine workmanship, possess compact appearance and stable performance, can make sure durability and stability. 【High Precision】:Copper tube flaring tool, the unique design of the punch makes the expansion process more , ensuring consistent and accurate expansion every time. 【Durable Material】:Swaging tool drill bit is made from steel material, this tool is durable and has a long service life. 【Portable】:Tube expander tool, small in size and lightweight, easy to carry to different job sites. Specification: Steps to use: First: heat the copper tube Second: Insert the punch Third: Just tap the punch rod lightly with the tool Size Chart: 18.8cm/7.40inch Package Includes: 1 Pipe Expanding Tool Note: Please allow slightly errors due to manual measurement and different monitors.