Description: Material: This 7 inch rafter square is made of CNC machined aluminum alloy, ensuring precision, durability, and resistance to rust and corrosion. Its high hardness makes it a reliable tool for any woodworking project.Unique Design: The Aluminum Alloy Triangle Ruler features a ledge support on its die aluminum base for stability on any edge. The Carpenter Triangle Square Rafter Tool has marking holes at 5, 15, 25, 35, 45 , 55, 65 and 75 degree for precise angle marking.Multifunctional Square Tool: This Carpenter Square can be used as a saw guide, a protractor, and a triangular ruler with a protractor scale of 0-90. The ordered size holes can help you quickly confirm the size of the drills or screws, saving time on measuring diameters.Portable and Lightweight: The aluminum alloy Rafter Square is lightweight and portable, making it easy to carry around your workspace. With dimensions of 26cmx18.7cmx18.5cm or 10.24inchx7.36inchx7.28inch.Carpenter Measuring Tool: With functions of measurement, marking suitable for woodworking, DIY, engineers, carpenters, craftsmen, amateurs, home builders, etc. Specification: Material: Aluminum Alloy Size Chart: 26cmx18.7cmx18.5cm or 10.24inchx7.36inchx7.28inch Package Includes: 1 Rafter Square