[Accurate]: With easy-to-read laser engraved scale, the protractor can directly read the angle of the miter saw Miter saw protractor features an "O" shape during operation, ensuring smooth and precise readings on inside/outside angles Perfect for crown molding, trim work, and a variety of other woodworking applications. The miter saw protractor is made of aluminum alloy, which has excellent and wear resistance for a long service life. [Wide Application]: Whether you are a professional or not, the miter saw protractor is your ideal choice. It is suitable for crown molding, mitering, carpentry, plumbing, metal processing and more., Manufacturer: Akfldms