A modified version of the original IIW-Type 1 design. Includes a 2.0" radius x0.250" deep cut-out superposed on the 4.0" radius for distance calibration.
Also includes numbers 3, 5 and 8 through holes (3/64", 5/64" AND 8/64" diameter) for sensitivity testing or surface wave inspection, and distance calibration marks to the 2.0" hole. In accordance with International Institute of Welding, ASTM E164 and U.S. Air Force NDI Manual T.O. 33B-1-1 specifications.
- IIW-Type 2, Inch
- Alloy : 7075-T6 Aluminum
- Condition: Tarnish on underside of block. Aesthetic defect that does not affect block performance.
- 15% Discount
- Serial No. 34980