APPLICATION: Used for Calibration of Shear and Longitudinal Transducer and Verification of shear wave exit point and refracted angel, Can also be used for resolution and sensitivity checking. SPECIFICATIONS: ✓ ASTM E164,MIL-STD-2154, IS4904 INCH VERSION DIMENSIONS: ✓ 1.0” x 4.0” x 12.0” With 4” Radious, 2.0” and 0.060” Diameter Hole, 0.240”deep x 0.080” wide slot and 1.0” Radious slot x 0.060” deep x 0.120” wide METRIC VERSION DIMENSIONS: ✓ 25.0mm x 100mm x 300mm (T x L x H ) With 100mm Radious, 50mm and 1.5mm Diameter Hole, 6.0mm deep x 2.0mm wide slot and 25.0mm Radious slot x 1.5mm deep x 3.0mm wide MATERIAL: ✓ Carbon steel, Stainless Steel, Aluminum etc.