Material and functions: The carpenter's square is made of high-quality aluminum alloy, is high-hardness, high-toughness, wear-resistant, oxidation-resistant, and durable. For three-dimensional marking - measuring and transferring angle measurements - stop at 45° and 90° - marking gauge for parallel lines - determining the drill bit size with the drilling template. Over 10 multifunctional functions: The drilling template is a square, protractor, dovetail template, circular hole, parallel line, vertical line, drilling positioning, T-shaped tip, 45°/90° angle ruler. Example: custom colors for labels. Measuring and transferring angle measurements. 45-degree and 90-degree angle stop/marking gauge for parallel lines. Drilling dimensions with the drilling jig. Wide range of applications: The joinery ruler is suitable for processing three-dimensional workpieces, e.g., beams, square timber, square and tubular pipes, hollow and solid, aluminum alloys, wood, stainless steel, marble, etc. It