Description: 【Precision and Accuracy】: This multifunctional carpenters square features finely etched edges and clear scale lines, ensuring precision measurements and markings every time. The inclusion of insertion holes allows for easy hanging and storage 【Specifications】: Woodwork Square Ruler tool has marking holes for angle marking, which can quickly mark multi angles (10°, 15°, 20°, 30°, 50°, 60°, 70°, 80°) , with scale hole dimensions of 3mm (0.12 inches) and a handle thickness of 16mm (0.63 inches), providing durability and reliability in various tasks 【Innovative Design】: Equipped with an metal support bracket, this right angle ruler ensures the handle remains stable on the work surface, enhancing accuracy during use 【Versatile Functionality】: Ideal for professionals in woodwork, construction, or crafting industries, this tool is ideal for measuring, marking, and determining angles with ease 【Sturdy Materials】: Constructed from quality aluminum alloy and steel, this carpenters square is built to withstand rigorous use while maintaining its precision over time Specification: Material:Aluminum alloy Steel Size Chart:30.5cmx17.5cm/12.01inchx6.89inch Package Includes: 1 Woodwork Square Ruler Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.