Five-Level (Four Step) Calibration Block for Metal Thickness Gages

• Material: Mild Steel (with Sound Speed of 5900 m/s)

• Thickness Levels: 0.100 in, 0.200 in, 0.400 in, 0.600 in & 0.800 in (if turn the block by 90 degrees)

• Tolerance: +/- 0.001inch

All surfaces are Chromed with individual ID (Serial Number) for each block.
Cr-Coated layers provide superior corrosion resistance and ease cleaning procedure.