64-Piece Detachable Thread Checker Kit
This comprehensive nut and bolt thread checker set includes 36 standard (UNC/UNF) and 28 metric sizes, neatly stored in a black box with a foam rack for easy access. Ideal for checking thread sizes in tight spaces or quickly identifying missing nuts and bolts at the hardware store, it’s far more convenient than traditional wire or plate thread gauges.

Premium Materials & Durable Design
Crafted from high-quality aluminum, each gauge is built for longevity. Standard sizes are color-coded in blue and metric sizes in red for quick identification. Thread markings are laser-engraved, making them clear, friction-resistant, and long-lasting. A must-have for professionals, DIY enthusiasts, or as a practical gift.

Standard Sizes (Blue – 36pcs)
2-56 UNC, 2-64 UNF, 3-48 UNC, 3-56 UNF, 4-40 UNC, 4-48 UNF, 5-40 UNC, 5-44 UNF, 6-32 UNC, 6-40 UNF, 8-32 UNC, 8-36 UNF, 10-24 UNC, 10-32 UNF, 12-24 UNC, 12-28 UNF, 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, 1-12 UNF.

Metric Sizes (Red – 28pcs)
M2-0.4, M2.5-0.45, M3-0.5, M3.5-0.6, M4-0.7, M5-0.8, M6-1.0, M7-1.0, M8-1.0 Fine, M8-1.25, M9-1.25, M10-1.0 Fine, M10-1.25 Fine, M10-1.5, M11-1.5, M12-1.25 Fine, M12-1.5 Fine, M12-1.75, M14-1.5 Fine, M14-2.0, M16-1.5 Fine, M16-2.0, M18-1.5 Fine, M18-2.5, M20-1.5 Fine, M20-2.5, M22-1.5, M22-2.5.

Three Ways to Identify Sizes
Sizes are clearly marked on the thread gauge, printed on a sticker chart, and screen-printed on the foam tray. This triple reference system makes finding and using the right size fast, accurate, and hassle-free.

Versatile & Organized Tool Kit
With 64 male and female thread gauges, this kit not only helps identify and check nuts and bolts for mechanical work or home projects, but also organizes mixed hardware, keeping your toolbox neat and preventing lost pieces.