1. Measuring support: With this protractor, an indispensable tool for adjusting chamfer angles and determining readings, you get precise angle transmission for your mechanics and carpentry needs. Keep it handy for your projects and tasks. 2. Intelligent angle detection: The protractor features a versatile semi circle scale from 0 to 180 degrees, enabling accurate measurement of all angles in your work. It can be attached to an object both backward and forward, allowing flexible angle testing and evaluation. 3. Accurate tilt measurement: Easily determine your angle by precisely measuring the inclination with our protractor. The metal arm is locked by a knurled wing nut, ensuring precise readings without slipping. 4. Revolutionary measuring tool: Made of durable stainless steel, this protractor helps DIY enthusiasts work smarter and achieve precise measurements. Measuring angles becomes easier and more accurate, delivering quality results every time.