[Detachable Nut & Bolt Size Finder]55pcs thread checker are housed individually in a storage case.When you do a thread check in a narrow or tricky area, You can easily take out the thread gauge and quickly identify the thread size you need, improve work efficiency

[30 Standards Shown In Blue]2-56 unc, 4-40 unc, 5-40 unc, 6-32 unc, 6-40 unf, 8-32 unc, 10-24 unc, 10-32unf, 12-24 unc, 3/16-24 unc, 1/4-20 unc, 1/4-28 unf, 5/16-18 unc, 5/16-24 unf, 3/ 8-16 unc, 3/8-24 unf, 7/16-14 unc, 7/16-20 unf, 1/2-13 unc, 1/2-20 unf, 9/16-12 unc, 9/16-18 unf, 5/8-11 unc, 5/8-18 unf, 3/4-10 unc, 3/4-16 unf, 7/8-9 unc, 7/8-14 unf, 1-8 unc, 1 1-12 unf

[25 Measurements Shown In Red] M2x0.4, M2.5x0.45, M3x0.5, M4x0.7, M5x0.8, M6x1.0, M7x1.0, M8x1.0, M8x1.25, M10x1.0, M10x1.25, M10x1.5, M12x1.25, M12x1.5, M12x1.75, M14x1.5, M14x2.2, M16x1.5, M16x2.0, M18x1.5, M18x2.5, M20x1.5, M20x2.5, M24x2.0, M24x3.0

[Size Quick ]Ensure a clear reading at a glance, our thread checker standard and metric kits offer 3 intuitive ways.1.Sizes clearly engraved on gauges themselves, 2.A sizes chart on paper sticker, 3.Sizes screen printed on .You can visually see the sizes easier, match up and take out the expected sizer.

[ Get Your Mixed Nuts and Well Classified]This nuts and organizer comes with 55 count screw size gauge--mostly frequent in daily mechanical work or project, which can help you quickly sort out your mixed nuts/ and get them well classified and say goodbye to guessing nut and bolt sizes or dealing with mismatched hardware.

[Precision Screw Thread Gauge]The thread gauge sae and metric is a high-precision tool made of 6601 , conforming to the Unified Thread Standard (UN) with ANSI B1. 1 (2A/2B) certification for SAE threads and ISO 68-1 (6G/6H) for metric threads to ensure lab-grade durability and accuracy.