(OTC4503) Stinger Fractional Double Flaring Tool KitFeatures: Designed for double or single flare in copper, aluminum, soft steel brake line, and brass tubing (to 45 degrees). Includes five adapters 3/16"" through 1/2"". Chrome swivel, made of alloy steel reduces friction. Forged yoke made of heat-treated steel. Housed in a blow-molded storage case.