describe Accurate: With an easy-to-read precision laser-etched scale, the protractor can directly read the miter saw angle. Ideal for crown molding, finishing work and a range of other woodworking applications. "O" Body Design: The Saker angle protractor adopts an "O" shape design during operation to ensure smooth and accurate readings of inner/outer angles, made of machined aluminum alloy precision CNC. Easy to Carry: Saker Portable Powerful Outdoor Tool is made of lightweight plastic, which is highly resistant to corrosion and wear, and can prolong the service life. In addition, it is small in size and light in material, making it easy to carry. WIDE APPLICATION: Whether you are a professional or not, the Saker miter saw protractor is very suitable for you. It's great for crown molding, miter cuts, woodworking, plumbing, metalwork, and more. Easy to Use: The report generator is designed for external use, with an easy-to-read dial and two zoom scales, allowing you to read your work directly, reducing the complexity of use. Designed for external use, the report generator features an easy-to-read dial and two zoom scales that allow you to read your work directly, reducing the complexity of use.