Easy to use professional engineer measuring tool for accurate results in a range of applications. Measuring range 0300 mm with adjustable modes to measure right angles, 45° angles, 45° slopes, as well as length, depth and width. Built with a stainless steel ruler and an alloy base for sturdiness and durability in daily use. Clear and accurate calibration that resists fading over time, maintaining reliability. Use scenarios Woodworking and furniture making: verify right angles and precise dimensions for joints and components. Metal fabrication and machining setups: set up patterns, check depths and widths, and confirm 45degree angles and slopes. Equipment alignment and installation: ensure accurate alignment, parallelism, and perpendicularity during assembly or setup. Specifications at a glance Range: 0300 mm Angles: right angle, 45degree angle, 45degree slope Measures: length, depth, width Materials: stainless steel ruler, alloy base Calibration: clear, accurate, faderesistant