3.PREMIUM MATERIAL - The flaring bar and cone is constructed from premium heat treated steel for strength and durability. The chrome swivel is made of Metal to reduce friction. Different sizes of sawge adapters are available for 3/16inch, 1/4inch, 3/8inch ( ), 5/16inch, 1/2inch, 5/8inch & 3/4inch O.D. brake line, air conditioning brass line, and other tubing. 2.1 flaring cone, 2 flaring bars (apply to 1/8inch, 3/16inch, 1/4inch, 5/16inch, 3/8inch, 7/16inch, 1/2inch, 5/8inch & 3/4inch O.D. Tubing), 1 tube cutter (range: 1/8inch-1-1/8inch (3-28mm)), 5 swaging adapters, 1 ratchet wrench (3/16inch, 1/4inch, 5/16inch, 3/8inch) and 1 blow-molded case for easy transportation and storage, meets all your needs. 1.VARIOUS APPLICATIONS - The professional single flaring and swaging tool kit (ATTENTION THIS IS NOT A DOUBLE FLARE TOOL) is designed to create 45-degree single flares or swage in copper, aluminum, magnesium, soft steel brake lines and brass tubing ( WITH HARD MATERIAL LIKE STEEL, IRON.....) 4.USING TIPS - The special cone eccentric revolution allows the internal open gradually and accurately from 45° flare without effort, preventing tube from sliding down and keeping the flare face to be smooth, uniform without scratching. Eccentric cone automatically rebound after finishing, let the idle top head revolve 1-2 times again and rub against the flare face to perfect., Manufacturer: Ounfhtrttk