Gauge Blocks with a Calibrated Coefficient of Thermal Expansion | MITUTOYO

• The products are the highest-quality gauge blocks exceeding Grade K and are provided with highly accurate thermal expansion coefficient data. They help minimize thermal correction and therefore
are suitable for highly accurate calibration.
(Uncertainty of thermal expansion coefficient: 0.035×10-6/ K (k=2))
• The thermal expansion coefficient is measured with a highly accurate doublefaced interferometer (DFI), and the dimensional accuracy is guaranteed with gauge block interferometer (GBI).
• Useful in highly accurate calibration of CMMs.
• A mark "Coefficient of Thermal Expansion" is engraved on the surface. They are available in the nominal sizes (100 to 500 mm) of steel and ceramic rectangular gauge blocks.