Includes NIST Certificate of Calibration!TWICE the range of most indicators!All X-Test Indicators include 5/32" and 3/8" dovetail clamps! Features: Graduation: 0.0005" Dial Size: 1-1/2" Dial Reading: 0 - 15 - 0 Range: 0.060" 1" or 1-1/2" Dial Diameter Jeweled movement Revolution counter Easy-to-read tilted dial Automatic reversal 210° Swivel arc Tungsten carbide points: .040", .080" and .120" diameter 5/32" stem