Angle finders use two arms hinged to a protractor to read angles between two points on both inside and outside corners. Dial and digital protractors, operating a 180-degree axis, are used to display the angle between the two points
Angle finders use two arms hinged to a protractor to read angles between two points on both inside and outside corners. Dial and digital protractors, operating a 180-degree axis, are used to display the angle between the two points, with digital protractors being easier to read. When using an angle finder, the surface you are checking must be free of high spots and debris and the protractor arms must be straight to ensure a correct reading.
Loosen the centre locking nut located where the arms of the angle finder meet at the protractor.
Extend the angle finder until the protractor reads 180 degrees. Examine the arms of the angle finder to ensure they are straight. If you find the arm(s) of the angle finder are bent, replace the angle finder. Straightening the arms will not ensure a correct measurement.
Push the arms of the angle finder into a corner of your home. Read the angle dimension aligned with the straight line