Easy to use: When installing the air conditioner, expand the copper pipe to connect the two copper pipes with each other. (It needs to be installed on a hand drill).Easy to use, your good assistant for work and life.

Type：Tube Expander

Material: Bearing Steel, Blackened Surface Treatment

Size(s): 7/8inch(22.2mm), 3/4inch(19mm), 5/8inch(15.9mm), 1/2inch(12.7mm), 3/8inch(9.5mm), 1/4inch(6.3mm)

Quantity: 6

Color: Black

Suitable For: Hard and Soft Standardized

Application: Expanding Copper Pipe