1.Construction: Crafted from robust materials, this Vernier bevel protractor is both wearresist and practical; It's designed for longlasting use, making it a dependable tool for accurate measurements in various applications2.Wide Measuring Range: This tool an impressive measuring range of 0320 degrees with an accuracy of 2'; Whether you're working on large projects or fine details, its broad range ensures that you can measure angles3.Fine Adjustment: The protractor is equipped with a bevel edges extension vane and fine adjustment mechanism; This feature makes it incredibly easy to finetune measurements, providing you with the most accurate results4.Accurate: Designed for exact angle measurements, this tool allows for both interior and exterior angle checks; Whether you're marking angles or checking measurements on different parts, this tool delivers accurate results