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MarGage 421

Optical Flat

FEATURES

• For testing the flatness of high-
precision measuring surfaces
(by the interference method)
on gage blocks and measuring
equipment and on precision
components with similarly
challenging surfaces.
• Package contains: case

TECHNICAL DATA
Order no. Product type Diameter Thickness Flatness
deviation
mm mm µm
4800135 421 100 20 0.1
4800136 421 150 30 0.1
4800137 421 300 50 0.4
4800140 421 45 11 0.1

MarGage | Standards, Gages and Gage Blocks 489