***LIMITED QUANTITY IN STOCK - DUE TO LOW DEMAND THROUGHOUT THE YEARS, ONCE STOCK RUNS OUT, WE WILL BE DISCONTINUING THIS PRODUCT***
Used for longitudinal, shear, and surface wave sensitivity calibrations.
Contains six flat-bottom holes: three 4/64 diameter, one each at depths of 0.050, 0.250, and 0.500; one 4/64 diameter at 1.500 deep; one 8/64 diameter at 1.625 deep; and one 16/64 diameter at 1.750 deep. Also contains the calibration notch. In accordance with ASME 1275N Boiler and Pressure Vessel Code, Section III, Nuclear Vessels.
• Fitted wooden storage case optional...see above.