SPI 5 Inch Long Accuracy Up To 0.0002 Inch Flat End Micrometer Calibration Standard MS160712005

SPI 8 Inch Long Accuracy Up To 0.0002 Inch Flat End Micrometer Calibration Standard MS160712008

SPI 11 Inch Long Accuracy Up To 0.0003 Inch Flat End Micrometer Calibration Standard MS160712011

Starrett 35 Inch Long Spherical End Micrometer Calibration Standard 67787