This combination square is a versatile measuring tool crafted from high-quality aluminum alloy (ruler) and zinc alloy (corner frame), with a 2mm thickness for durability. It features high-precision laser engraving on both sides, with clear mm/cm graduations that are wear-resistant and easy to read. Designed for multiple functions, it supports drawing straight and parallel lines, layout marking, calibration, measuring router bit depth, and setting table saw blades. It provides horizontal measurement, 90° and 45° angle measurement, and can be used as a 45° bevel gauge or height/depth measurer. The 300mm (12-inch) straight ruler comes with an adjustable square head for precise angle and line marking. Ideal for woodworking, metalworking, and DIY projects, this tool helps achieve accurate results. Specifications: - Material: Aluminum alloy (ruler) + Zinc alloy (corner frame) - Thickness: 2mm - Ruler Length: 300mm (12 inches) - Graduations: Double-sided mm/cm laser-engraved scales - Functions: Straight/parallel line drawing, layout, calibration, angle measurement (45°/90°), depth/height measurement - Includes: 1× Combination square with adjustable head Note: Manual measurements may have a 1–3 cm error. Color may vary slightly due to lighting and monitor settings. Actual product may differ from images.