Mac Tools' Universal Hydraulic Flaring Tool Set, No. AC71475, creates production quality brake lines. This kit fabricates push connect 1/4", 5/16" and 3/8"; GM fuel line flare, brake lines and transmission 5/16" and 3/8"; flare/double flare 3/16", 1/4", 5/16", 3/8" and 1/2" and metric bubble flare 4.75mm, 6mm, 8mm and 10mm. The tool set comes in custom molded box.