The Mitutoyo 104-139A Outside Micrometer with Interchangeable Anvils has the following specifications:Range: 0-100mmGraduations: .01mmMass(kg): 0.79Remarks: With 4 Anvils & 3 StandardsWith Ratchet StopFeatures:?  Wide measuring range with interchangeable anvils.?  With a Ratchet Stop for constant force.?  Supplied with zero-setting standards bar for each range.?  Supplied in fitted wooden case.?  Measuring faces: Carbide tippedTechnical Data?  Accuracy: +/- (4 + R/75)um   R = Max Range (Metric)?  Graduation: 0.01mmFlatness:?  .0006mm for models up to 300mm?  .001mm for models over 300mmParallelism:?  .002mm for models up to 75mm?  .003mm for models up to 150mm?  (2 + R/100)um    R= Max range (inch)
