-
Loosen the center locking nut located where the arms of the angle finder meet.
-
Push the arms of the angle finder into an inside corner, whether it's two walls, two pieces of molding or other elements forming a corner. Make sure both arms are resting fully on their respective surfaces.
-
Tighten the locking nut to secure the arms' positions.
-
Read the angle dimension aligned with the reference line on the protractor, or read the digital display.
-
Measuring outside corners using the same technique, placing the angle finder over the two sides of the corner.
The Drip Cap
- Angle finders use two hinged arms and an integrated protractor-like scale or digital device to read the angles of both inside and outside corners.
- 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 an accurate reading.