Mitutoyo Screw Thread Micrometer w/ SPC Output Interchangeable Anvil Micrometer Specifications include... 0-1" / 25mm Measuring Range 0.00005" / 0.001mm Resolution + 0.0002" Accuracy Features include... For use with 55° or 60° interchangeable anvils Ratchet Stop SPC Output Supplied in fitted case Interchangeable Anvils Sold Separately 55° Anvils: Mitutoyo # 126-810 60° Anvils: Mitutoyo # 126-800