ACCURATE MEASUREMENT : Miter saw protractor provides accurate angle calculations for the highest precision cutting. It has two laser engraved scales, and two scales transfer your work angle directly to the miter saw for an accurate miter cut, and single cut. SUPERIOR QUALITY AND DURABILITY : The angle finder is made of anodized aluminum, which is highly wear-resistant and guaranteed to last a lifetime without deformation. It's also very convenient and flexible, with a perfect balance of sturdiness and weight. EASY TO READ SCALE : The scale on the angle measuring tool is laser engraved, the scale is very clear and the white markings on the black background are easier to read even without bright light. Laser-etched technology effectively prevents scale numbers and markings from wearing off or fading away. WIDE RANGE OF APPLICATIONS : Bnlcd miter saw protractor rotates a full 360 degrees to measure any angle, so it's perfect for you whether you're a professional or not. It's perfect for crown molding, miter cuts, carpentry, plumbing, metalworking and more. NOT JUST MAKE IT, WE UPGRADE IT : We keep upgrading products according to buyers' advice. We have extra laser engraved length scales to make it easier to measure and record lengths. The 1/5-Inch thick aluminum alloy is stronger and won't bend like the plastic ones.