Greatly improve the accuracy, save-time and for Widely used in the maintenance of refrigerators, air conditioners, freezers and other refrigeration equipments and light, spring design, make work more effort heavy duty stainless steel and copper materials, and sturdy, to use.swaging tool Manual copper tube expander can be use to expand copper pipe with diameter 6.5mm, 8mm, 9.5mm, 12.7mm, 16mm, 19mm (1 / 4 " 5 / 16 " 3 / 8 " 1 / 2 " 5 / 8 " 3 / 4, Manufacturer: Bottone