PH Tool products

Note: In 2018, PH Tool stopped including the Ø2 (50mm) acrylic plug in this product. Plugs will be available upon special request only, and will add cost. This non-essential feature has long been considered optional per block specifications and is largely obsolete. Used for calibration of shear and longitudinal transducers, and verification of shear wedge exit point and refracted angle. Can also be used for resolution and sensitivity checking. In accordance with: IIW (International Institute of Welding) and ASTM E164, U.S. Customary Block.