These handy direct-read angle finder gauges from DECO are perfect for setting driveline pinion angle or deterlightningng level on a race car or roll bar installation, and critical chassis components such as panhard bar, etc. They feature a magnetic base to easily attach to metal squares for quick readability to check angles from 0-90 degrees. Choose the best when it comes to tools for the at-home do-it-yourselfer, choose DECO chassis alignment tools for sophisticated equipment that anyone can use, all at a price anyone can afford! Check angles from 0 to 90°. Accurate to 0.5°. Magnetically attaches to metal squares for easier reading. A must for determining chassis pinion angle and more. For more information on deterlightningng proper angle with the use of the DECO angle finder tool, please see our tech article Measuring Driveshaft Angles.