SPI Standard Outside Mechanical Set Set includes... 6-12" Measuring Range 0.0001" Graduations Accuracy... 6-7" Model: + 0.0002" 7-8" Model: + 0.0002" 8-9" Model: + 0.0002" 9-10" Model: + 0.0003" 10-11" Model: + 0.0003" 11-12" Model: + 0.0003" Ratchet Stop Thimble Carbide Spindle Faces 0.25" Spindle Diameter NIST Traceable Calibration Certificate Furnished in fitted case Micrometers included in set... 6-7" Outside Micrometer 7-8" Outside Micrometer with standard 8-9" Outside Micrometer with standard 9-10" Outside Micrometer with standard 10-11" Outside Micrometer with standard 11-12" Outside Micrometer with standard
