Easily identify nut and bolt sizes in Metric and Imperial. Thread checkers on a wire lanyard for quick and precise measuring. White beads between the gauges to indicate the Metric sizes and blue to indicate Imperial. Convenient loops on each end for hanging. Features & Benefits: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, M7-1, M8-1, M8-1.25, M10-1, M10-1.25, M10-1.5, M12-1.25, M12-1.5, M12-1.75.Model No. AK70NBC Specifications: Model No AK70NBC Brand: Sealey Nett Weight: 0.4kg Imperial Sizes UNF/UNC 14pcs: 6-32, 8-32, 10-24, 10-32, 1/4-20, 1/4-28, 5/16-18, 5/16-24