General description The 180mm Carpenter Square is a versatile and high-precision tool designed for both beginners and professionals. Made from thickened aluminum alloy, this triangle angle protractor is lightweight yet sturdy, featuring a matte black surface that is anti-glare and resistant to corrosion. Its design includes a hollow auxiliary frame for easy line drawing and a T-shaped fixed side for stability during use. Technical specifications Material: Thickened aluminum alloy Size: 180mm Angle measurement: 0 to 90 degrees Usage This carpenter square is ideal for: Marking angles accurately Measuring lengths Improving cutting accuracy Facilitating horizontal or beveled cuts Enhancing work efficiency with a quick conversion table Other information This tool is suitable for various applications in construction and decoration projects, making it a must-have for carpenters, engineers, and designers.