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A circular Mitutoyo optical flat with one surface accurately polished for inspecting the flatness of gauge block or platen reference surfaces, micrometer contact faces or any other very flat surface of high reflectivity.
Optical Flats
Used for inspecting the flatness of Micrometer or Gauge Block measuring faces with high accuracy
-Available in different grades and sizes
Flatness (158-118/120) 0.1µm (158-117/119) 0.2µm (158-122/124) 0.000004 inches (158-121/123) 0.000008 inches
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