A precise, durable rotating ruler for measuring, marking, and transferring angles Key benefits Accurate angle setting: The rotating sliding head lets you lock any angle for consistent marking and transfer between workpieces. Faster layout work: Flat edges and clear scales on both the ruler and slider make it easy to draw straight lines and accurate marks without remeasuring. Built to last: Made from aluminium alloy with an electroplated finish for wear resistance and long-term durability. Versatile use: Designed for engineers, architects, students, draftsmen, and artists who need a reliable, multi-angle measuring tool. What it does and why you need it Multi-functional T bevel: Combines an angle-setting bevel with a ruler for one-tool layout, reducing the need for separate squares and protractors. Adjustable length and angle: The sliding head moves up and down for different lengths and rotates to any desired angle, so you can adapt the tool to a wide range of tasks. Clear, usable markings: Easy-to-read scales speed marking and reduce errors during drawing, drafting, and on-site layout. Features and materials Material: Aluminium alloy body for strength with an electroplated surface to resist wear and corrosion. Design: T-style bevel with sliding head, flat edges, and clear scales on both ruler and slider. Function: Rotating head locks at any angle; slider adjusts vertically for needed reach. Typical applications Architecture and drafting: Rapidly transfer and lock building angles from plans to templates or drawings. Carpentry and woodworking: Set and repeat complex angles for cut lines, miters, and layout work. Education and design: Precise, durable tool for students, engineers, draftsmen, and artists working on technical drawings or models. Compatibility and performance Intended users: Practical for engineers, architects, students, draftsmen, and artists. Performance: Wear-resistant construction and adjustable design deliver consistent, repeatable angle marking across materials and projects. What you get A multifunctional rotating ruler/T bevel that combines angle setting, straight-edge marking, and adjustable reach in a durable aluminium alloy construction.