Features:
【Upgraded Printing】This nut and bolt thread checker has been upgraded to aluminum with red/blue oxide layer for each thread gauge, providing clearer size marks with anti-rust and anti-wear features that long-lasting visibility.
【Blue Oxide Layer Aluminum for Inch Size】Includes 14 Inch size part numbers: 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.
【Red Oxide Layer Aluminum for Metric Size】Includes 12 metric sizes part numbers: 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.
【Nut & Bolt Thread Checker】With 26 male/female gauges, included 14 inch & 12 metric sizes, our product is the ideal solution to all your nut and bolt checking needs. 
【Easy to Hang】Our nut and bolt gauge comes with a convenient hanging feature that allows you to hang it on a pegboard or tool rack for easy access.

Specifications:
Material: Aluminum Alloy 
Inch (14 Sizes):
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 (12 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
Total Length: 74.5cm / 29.33in
Item Weight: 108g / 3.81oz
Package Weight: 150g / 5.29oz
Package Size: 15 * 15 * 2cm / 5.91 * 5.91 * 0.78in

Package List:
1 * Nut and Bolt Thread Checker