Description

Set of eight flat-bottom hole blocks used to determine the relationship between flaw size and echo amplitude by comparing signal responses. Metal travel distance is 3.000” for all blocks, and FBH diameter ranges from #1 (1/64″) to #8 (8/64″). In accordance with E428.

Dimensions: FBH diameters are 1/64″, 2/64″, 3/64″, 4/64″, 5/64″, 6/64″, 7/64″, and 8/64″. Block diameter is 2.0″.