102-701 Mitutoyo Micrometer 0-25mm, .01mm GradMitutoyo Outside Micrometer Ratchet function works both from the thimble and the speeder, allowing easy one handed operation Features include 0 25mm Measuring Range 0. 01mm Graduations + 2um Accuracy Heat insulated frame Clearly audible ratchet operation for reassurance that measurement is being performed at constant, preset force Supplied in fitted case