Accurate measurement tool: Designed to measure depth gaps, hole sizes, and lengths with exceptional precision, making it essential for precision work and quality checks across various applications. Stainless steel construction: Made from forCR stainless steel, this ruler is built to last and provides reliable performance even in challenging conditions. Easytoread scale: Clear 1 mm markings allow precise readings that are easy to interpret, reducing errors and improving workflow. Userfriendly adjustment: The adjustable nut mechanism lets you set the tightness to suit your task, enhancing control and usability. Practical applications: Machining and tooling: verify bore diameters, depth gaps, and overall lengths during setup or inspection. Assembly and fabrication: check gaps and clearances in mechanical assemblies to ensure proper fit. Woodworking or metalworking: measure slot depths, rebates, and part thicknesses with straightforward readability.