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 storageSpecifications: 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 tasksInnovative Design: Equipped with an metal support bracket, this right angle ruler ensures the handle remains stable on the work surface, enhancing accuracy during useVersatile Functionality: Ideal for professionals in woodwork, construction, or crafting industries, this tool is ideal for measuring, marking, and determining angles with easeSturdy 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.