Features 1、Nut and Bolt Measuring Tool Set: Our nut and bolt checker set includes assortment of 26 male/female nut and bolt size checker gauges for measuring thread pitch. Use the detachable nut and bolt gauges to check, identify /u0026 verify nut and bolt size. 2、Standard Inch /u0026 Metric Sizing: The nut and bolt thread sizer kit includes both inch and metric thread checkers. The all-in-one complete nut and bolt gauge sizing tool set for plumbers, handymen, repairsmen, auto mechanics /u0026 machinists worldwide. 3、Supports Measuring in Tight Spaces: Unlike a wall mounted nut and bolt measure or stationary nut and bolt board, each bolt and nut identifier gauge featured in our kit can be removed /u0026 used to measure thread pitch in cramped or enclosed spaces. 4、Nut and Bolt Size Guide Storage Box: Featuring clear nut and bolt labels, our gauge organizer box makes nut and bolt identification quick /u0026 easy. Foam firmly holds gauges in place for organization. Red gauges are metric, blue gauges are inches. 5、Nut Bolt Thread Checker Sizes Included: 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. Inch sizes: 6-32, 8-32, 10-24, 10-32, 1/4-30, 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. Specification Features: Nut and Bolt Measuring Tool Set: Our nut and bolt checker set includes assortment of 26 male/female nut and bolt size checker gauges for measuring thread pitch. Use the detachable nut and bolt gauges to check, identify & verify nut and bolt size. Standard Inch & Metric Sizing: The nut and bolt thread sizer kit includes both inch and metric thread checkers. The all-in-one complete nut and bolt gauge sizing tool set for plumbers, handymen, repairmen, auto mechanics & machinists worldwide. Supports Measuring in Tight Spaces: Unlike a wall mounted nut and bolt measure or stationary nut and bolt board, each bolt and nut identifier gauge featured in our kit can be removed & used to measure thread pitch in cramped or enclosed spaces. Nut and Bolt Size Guide Storage Box: Featuring clear nut and bolt labels, our gauge organizer box makes nut and bolt identification quick & easy. Foam firmly holds gauges in place for organization. Red gauges are metric, blue gauges are inches. Nut Bolt Thread Checker Sizes Included: 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. Inch sizes: 6-32, 8-32, 10-24, 10-32, 1/4-30, 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. Specifications: Quantity: 26Pcs / 44Pcs (Optional) Material: Aluminum alloy Quantity: 26Pcs 14 Inch Size: 6-32, 8-32, 10-24, 10-32, 1/4-30, 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 12 Metric Size: 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 Package Weight: 323g / 0.71lb Package Size: 19.5 * 17 * 5cm / 7.67 * 6.69 * 1.97in Package List: 1 * Nut and Bolt Thread Checker 1 * Storage Box Package List 1 * Nut and Bolt Thread Checker 1 * Storage Box