Starrett Universal Dial Test Indicator Set with Back Plunger, 3 Contact Points, Adapter and 4 Attachments in Case - Yellow Face, 0-100 Reading, 5mm Range, 0.02mm Graduation, 1/4" Shank - 196MA1Z

While there is a need for indicators with finer graduations. 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.