• 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 convenient locations throughout the shop or garage