- Durable Construction: This ruler features a T-shaped design combined with an aluminum alloy stopper, treated with black grinding and anodizing for enhanced wear resistance and rust-proof performance. Enjoy a comfortable grip during your measurements. - Versatile Measurement Angles: The T-angle square design allows for precise measurement and drawing of 45 degrees, 90 degrees, and 135 degrees. Easily adjust the angle to suit your needs for quick and efficient work. - Comprehensive Measurement Ranges: The T-type head measures from 0-100 mm, while the main scale extends from 0-280 mm. Both the upper and lower scales are designed for measuring width and depth, combining the functionality of traditional calipers with added angle measurement and marking capabilities. - Clear and Accurate Readings: The ruler boasts a clear design with easily readable numbers, ensuring quick visibility at a glance. The limiter is marked with a resolution of 0.05 mm, providing precise readings for all your projects. Use Scenarios: 1. Ideal for carpentry and woodworking projects, enabling accurate angle cuts and measurements. 2. Perfect for engineering and drafting tasks, where precise angle and depth measurements are crucial. 3. Useful in educational settings for teaching geometry and measurement principles effectively.