Mitutoyo Dial Indicator Mitutoyo's Series 2 Dial Indicators offer high-strength, heat-treated stainless steel spindles for longevity. Also included are scratch and chemical resistant, hard-coated crystals. Features include... 0-.5" Measuring Range 0-10 Dial Reading .0001" graduation 0.010" Range Per Revolution Flat Back 3/8" Diameter Stem 4-48 UNF Threaded Tip