Features: Ensure precise in your automotive repairs with this 28 hole thread checker, essential tool for identifying thread sizes on screws, nuts, and bolts. Crafted from aluminum alloy, this multifunctional thread checker features a comprehensive range of threaded holes for quick and accurate measurements. For professional mechanic, automotive technicians, and diyer enthusiasts who demand accuracy when assessing thread specifications. A must have for auto repair shops and machining workshops, this tool streamlines this process of checking thread sizes for vehicle parts and machinery component. Enhances your toolkit's capabilities with this thread checker, designed to facilitate flawlessly part compatibility and installation, ensuring every project is completed to perfections. Specifications: Component:Aluminium Alloy Size:Approx.41x8cm/16.14x3.15inch Thickness:Approx.0.7cm/0.28inch Color:Black Package Includes: 1pcs Screw Nut Bolt Thread Checker note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual coloring of the item. Thanks for your understandings.