For thickness and linearity calibration.
The 4-Step block Inch version has step thicknesses of .250", .500", .750" and 1.000" steps. Step face measures .750" x .750
The 4-Step block Metric A version has step thicknesses of 6.25, 12.5, 18.75 and 25 mm steps.
The 4-Step block Metric B version has step thicknesses of 5, 10, 15 and 20 mm steps
In accordance with ASTM E797.
Dimensions: 3.75" x .75"
Fitted wooden storage case optional
NOTE: Variations of this block are available if additional steps are preferred. Also, larger step faces are offered for use with large diameter transducers. In accordance with ASTM E797.
