Durable, wear resistant construction: built from thick material for safety and to resist breaks, ensuring consistent, reliable results with every use. Versatile 2-in-1 marking tool: precisely marks 90-degree bends in square tubes and marks rounded corners; easy to transfer angles on workbenches and round tables to boost workflow efficiency. Precise scales you can trust: features a Nonius-style vernier design with clear, easy-to-read angle and arc graduations. Suitable for calculating right, rounded, or specialty angles. Comfortable and secure: ergonomic handle for comfortable use and a stable locking mechanism that maintains alignment during marking for reliable measurements. Practical applications: ideal for metal fabrication (frames, tubing), woodworking and furniture making, cabinetry projects, and general shop layout tasks. Use scenarios: - Mark 90-degree bends on square tubing for frame assemblies. - Layout rounded corners on furniture components or metal parts. - Transfer precise angles from the tool to benchtops and round tables during project setup.