Cal-Van Tools Metric Double Flaring Tool has been designed to withstand the high pressures necessary to double-flare soft steel tubing as well as single-flare soft copper, aluminum and brass tubing. The set includes a drop forged compressor yoke, 5 double-flare adapters and a threaded die holding bar with a size capacity of 4.15 millimeter, 5 millimeter, 6 millimeter, 8 millimeter and 10 millimeter. Blow molded case.