Micrometer Size: 0-25mm
157-104 Mitutoyo Optical Parallel: 12.37mm
The Mitutoyo 157-104 optical parallel has the following specifications:
Parallelism check between measuring faces by means of interference fringe produced by an optical parallel.
The parallelism between the measuring faces can be determined as follows:
Mitutoyo Individual Optical Parallels and Optical Parallel Sets: