Mitutoyo Digital V-Anvil Micrometer Measures the outside diameter of cutting tools (such as taps, reamers, end mills) with an odd number of flutes. Specifications include... 1 - 1.6" / 25.4-40.64mm Measuring Range 0.00005" / 0.001mm + 0.0002" Accuracy Features include... Ratchet Stop for constant force Supplied with setting standard With SPC output Supplied in fitted plastic case