The Waygate Technologies Krautkramer DSC block, a Baker Hughes business product (formerly GE Inspection Technologies), is used for shear wave distance and sensitivity calibration and is made of 1018 carbon steel with inch reference marks. Contains a 1.0" radius opposite a 3.0" radius. The 3.0" radius includes a .375" deep x .032" wide radiused slot. Also contains a 0° reference point for checking exit point on wedge, and a .125" diameter through hole and corresponding markings at 45°, 60°, and 70° for measuring actual refracted angle. In accordance with ASTM E164 and AWS 6.16.1B. Metric version available. Special DSC blocks with radiussed scanning surfaces for NPS sizes also offered. The Waygate Technology Krautkramer IIW Type 1 Block, a Baker Hughes business product (formerly GE Inspection Technologies), is for calibration of shear and longitudinal transducers, and for verification of shear wedge exit point and refracted angle. Made of carbon steel. Also can be used to check resolution and sensitivity. The Waygate Technologies Krautkramer IIW Type 2 Block , a Baker Hughes business product (formerly GE Inspection Technologies), is a modified version of original IIW Type 1 and is made of carbon steel with inch reference marks. Includes a 2.0" radius x .250" deep cut-out and additional side-drilled holes for resolution studies.