Fowler Electronic Point Micrometer Pointed Spindle and Anvil (30°) for measuring small grooves, key-ways, small flutes and Other Hard to Reach Areas Features Include... 0 - 1" / 25mm Measuring Range Resolution: 0.00005"/0.001 mm Accuracy: 0.00016" / 0.004mm Large LCD Display 30å¡ Points Spindle lock Carbide Measuring Points Furnished in fitted case