INSIZE 3-Point Dial Internal Micrometer Features Include... 0.425" - 0.500" Measuring Range 0.0001" Graduations 0.00015" Accuracy Ratchet Stop Includes 0.5" Setting Ring Includes 4" Extension Rod Includes Fitted Case Dimensions... L: 2.146" a: 0.059" b: 0.098"
