The HexSizer Inch and Metric SAE & common sizes Nut and Bolt Size Gauge Tool is an essential tool for accurately measuring everyday nut, stud, and bolt sizes for SAE inch or metric fasteners. Made from durable anodized aluminum, this gauge features the patented HexSizer design, which measures a nut from one flat, allowing for easy measurements even on installed nuts where the stud might get in the way. Whether you're working on a riding lawn mower, car, or any project involving SAE hardware, this tool ensures you always have the right sizes on hand. Its compact design fits easily in your wallet or tool kit, making it a practical, portable choice for mechanics, technicians, and DIY enthusiasts. With precise inch-based measurements, it helps you confirm hardware sizes before grabbing tools, eliminating unnecessary trips to the hardware store. The HexSizer is a must-have for professionals and hobbyists alike, ensuring accurate measurements and simplifying your work.bolt gauge metric sae thread nut fastener size detector set screw pitch tools original measure identifier metal tread finder guide bolts sheave portable diameter micrometer hardware threads tornillos manufacturing tpi checker tester caliper sizer