MHC 605-5004 Cylinder Squares Diameter Square 4" Height 12"

•The squares are hardened and ends are lapped to 90° angular accuracy with the cylinders as follows: 6 square to .00010 12 square to .00015 Includes fitted case

•These cylindrical squares are used in surface plates as a 90° reference angle

•Can be used for checking squares, height gauges and many other instruments.

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