Fowler Micrometer Calibration Set Features:
- 9 Pc. rectangular sets including two optical flats.
- Assists in meeting both ASME B89.1.9 and ISO 9000 requirements
- Contains one block of each of the following sizes: .0625, .100, .125, .200, .250, .300, .500, 1.000 & 2.000″
- TWO OPTICAL FLATS that vary in size by .0125″ which allows checking anvil faces at half rotations of spindle for measuring flatness
- Supplied with fitted wooden case and certification to N.I.S.T. on each block
- Meets grade Ø specifications