Fowler 3-4″/75-100mm Electronic IP54 Ball Anvil Micrometer • Ball anvil/flat spindle for measuring tubes or the insides of holes to outer edges • Protected to IP54 specifications• Large LCD display, 8.5mm• Automatic switch off• Resolution: .00005″/.001mm• Hardened steel measuring face• Absolute & incremental modes• Sizes over 1″/25mm include standard *Image shown for representational purposes only