Fowler's X-Test Indicator with Black Face Twice the range of most indicators! Features include... 0.060" Range 0.0005" Graduation High Contrast Black Face 0-15-0 Dial Reading Jeweled Movement 0.040" Steel Ball Contact Point 0.080" Diameter Carbide Ball Contact Point 0.120" Diameter Carbide Ball Contact Point Dial Diameter: 1.5" 5/32" Stem Includes NIST Traceable Certificate of Calibration