Sealey AK70NBC Thread Checker Nut & Bolt Checker - Metric/Imperial

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. Red beads between gauges to indicate the Imperial sizes and Blue to indicate Metric. 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., Weight: 0.91712300992 pounds, Manufacturer: Sealey