Easily check thread sizes for the most common thread sizes found in automotive braking systems | Check thread sizes for: 1/8" NPTF, 1/4" NPTF, 3/8" x 24, 7/16" x 20, 7/16" x 24, 1/2" x 20, 9/16" x 18, 9/16" x 20, 5/8" x 16 | Each size has a male and female end checker | Thread sizes are clearly and permanently stamped innto each gauge | Assembled onto a plastic coated wire loop for hanging in conv

Nickel-copper alloy for super easy bending & flaring - You can hand bend lines our lines for easy and flexibility | Rust and corrosion proofing technology - Our Copper Nickel Alloy lines are the longest lasting line and are much better than standard steel tubing | Meets all SAE and ISO specifications - Our tubing is the best quality tubing on the market | We take pride in producing the best fuel, transmission and brake lines in the industry | Lifetime warranty, we promise as long as the lines are installed correctly out lines will outlast the life of the vehicle

Contains one 25 ft 1/4 in Brake Line Kit, Universal Size Tubing Coil, PVF-coated, copper-brazed, double-walled, steel tubing coils | The PVF-coating offers 30 times the corrosion resistance of standard galvanized steel tubing | Contains popular tube nuts for working on and creating any 1/4" outside diameter brake lines for inverted flares | Steel tubing coils provide an easy to work with and long-lasting brake line replacement option for professionals and do-it-yourselfers. | A complete brake line repair in one single kit