No wasted time searching for the right fitting. This full assortment contains all popular tube nuts, unions and adapters for working on and creating any 3/16in or 1/4in outside diameter brake lines for both inverted and bubble flares. Ideal for both domestic and import applications, kit contains fittings for both inch and metric thread applications. Each of the 13 adapters, 15 tube nuts and 4 unions contained in this assortment are machined to exacting specifications and packaged in a shatter-resistant, see-through plastic tray with lid labels that make locating, selecting, and re-filling quick and easy. Perfect for specialty and general repair shops.