Sealey Metric/Imperial Nut & Bolt Thread Checker 26pc

- 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.