QUICK IDENTIFICATION: Streamline your work with our thread checker, designed for quick, accurate sizing of nuts and bolts. Featuring a dual standard and metric design, this tool ensures you easily find the correct size to replace damaged or worn parts in your toolkit. SUPERIOR QUALITY CONSTRUCTION: Constructed from rugged aluminum alloy with SUS304 stainless steel threads, our nut and bolt identifier gauge is built for durability and longevity. This crafting not only enhances its structural integrity but also ensures it stands up to frequent use in any workshop setting. EXTENSIVE SIZE RANGE: Our thread gauge covers a wide array of 28 unique sizes, evenly divided between 14 metric and 14 standard measurements. This versatile range makes it an essential tool for identifying the specific threads for screws, bolts, and nuts, ensuring you always have the right fit. MULTI-FUNCTIONAL TOOL: Not just for thread checking, this device is equipped with a dual-scale ruler (6 inches and 14 centimeters), enhancing its utility. This feature allows for quick measurements of bolt lengths and screw sizes, making it a practical addition to any professional or home toolkit. The actual product may have slight color differences or differences, which does not affect use. Colour:Black/Red Material:Metal Package Contents: 1 x 28 Nut and Bolt Thread Checker 4 x food pads with screw 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.