Starrett 196B6 Universal Dial Indicator, Antimagnetic, Back Plunger, White Dial, 0-100 Reading, 0-0.2" Range, 0.001" Graduation

While there is a need for indicators with finer graduations. Antimagnetic models is also available. Then the contact should be brought against the work with enough pressure to give the hand one full turn. Set the hand at zero by rotating the dial with the knurled bezel. This provides one full rotation of the hand both to the right and left of zero, showing a rise or drop in the work and the amount of that variation.