Comprehensive Thread Checking Tool: Equipped with 26 dual male/female gauges covering 14 inch and 12 metric sizes, this Nut & Bolt Identifier is indispensable for consistently verifying various thread sizes. Perfect for eliminating guesswork and ensuring compatibility. Stainless Steel Construction: Constructed from premium metal, our is robust and built to endure rigorous usage, promising years of reliable service in any workshop setting. Each gauge is expertly crafted to offer both durability and precision. Black Oxide-Coated Metric Gauges: Our set includes 12 easy-to-identify metric sizes ranging from M4x0.7 to M12x1.75, all treated with black oxide for enhanced durability and resistance, ensuring sustained performance for engineering and automotive applications. Zinc-Plated Inch Gauges: The kit features 14pc inch gauges, sizes from 6-32 to 1/2-20, offering exceptional resistance to . The clear, permanently stamped markings on each gauge allow for quick identification and use, making it a valuable tool for any DIY tasks. Time-Saving, Efficient Design: Designed to optimize your workflow, our features gauges that rotate freely on a wire cable, allowing you to quickly and accurately determine thread sizes without the hassle of manual checking, thus enhancing your project efficiency profoundly. The actual product may have slight color difference or difference, which will not affect the use Colour:Photo Color Material:Aluminum alloy Package Contents: 1set x Nut and Bolt Thread Checkers Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.