Tube Expander Kit, Compatible Tube Size 3/8 in, 1/2 in, 5/8 in, 3/4 in, 7/8 in, 1 1/8 in, Material Application Aluminum, Copper, Maximum Wall Thickness 0.05 in, Number of Heads Included 6, Container Type Case, Includes (6) Expander Heads, Includes Storage Container Yes, Series Yellow Jacket