Mitutoyo Screw Thread Micrometer w/ SPC Output Interchangeable Anvil Micrometer Specifications include... 1-2" / 25-50mm Measuring Range 0.00005" / 0.001mm Resolution + 0.0002" Accuracy Features include... For use with 55?ø or 60?ø interchangeable anvils Ratchet Stop SPC Output Supplied in fitted case Interchangeable Anvils Sold Separately 55?ø Anvils: Mitutoyo # 126-810 60?ø Anvils: Mitutoyo # 126-800