• Forms international standard bubble flare in one fast operation. Flares metric hydraulic brake lines used on European, Japanese and American automobiles and light trucks like the new Ford F150. This unique design makes flares on 4 sizes of tubing: 4.75 mm (3/16”), 6 mm, 8 mm and 10mm O.D. Will flare soft double wall steel tubing with a wall thickness up to .028”. Can also be used with soft copper and aluminum tubing. • Set Contents: For soft steel or Bundy tubing 4.75 mm (3/16”), 6 mm, 8 mm or 10 mm O.D. tubing. Packaged in a blow molded case.By SK Hand Tool.