Description • Easily identify nut and bolt sizes in Imperial (14-piece) or Metric (12-piece). • Thread checkers on a wire lanyard for quick and precise measuring. • White beads between gauges to indicate the Metric sizes and blue to indicate Imperial. • Convenient loops on each end for hanging. • Imperial Sizes UNC/UNF: 6-32, 8-32, 10-24, 10-32, 1/4″-20, 1/4″-28, 5/16″-18, 5/16″-24, 3/8″-16, 3/8″-24, 7/16″-14, 7/16″-20, 1/2″-13, 1/2″-20. • Metric Sizes: M4-0.7, M5-0.8, M6-1.0, M7-1.0, M8-1.0, M8-1.25, M10-1.0, M10-1.25, M10-1.5, M12-1.25, M12-1.5, M12-1.75.
