This 3D Multi-Angle Measuring Ruler is a versatile aluminum alloy woodworking tool that integrates a protractor, miter triangle, and standard ruler into one precision instrument. Designed for carpentry and engineering, it allows for quick and accurate angle measurements from 0 to 180 degrees and features integrated scribing holes for precise layout and line marking. Its 3D design is particularly useful for checking and marking lines on complex surfaces like door frames, while its CNC-machined construction ensures high durability and clear, etched markings for long-term readability.