SPI Uni-Mike Micrometer with SPC Output Measures tubing thickness, shoulder edge distance, rivet head height, etc. with interchangeable anvils (flat anvil, rod anvil, V-anvil). Specifications include... 0-1" / 25mm Measuring Range 0.00005" / 0.001mm Resolution + 0.0001" / 0.002mm Accuracy Features include... IP65 water / dust protection Includes 2 Interchangeable Anvils... Flat Anvil (0.059" x 0.25") Rod Anvil (0.118") Carbide Measuring Face Ratchet Thimble Includes Certificate of Calibration