IIW Type 2 Block

A modified version of the original IIW-Type 1 design. Includes a 2.0″ radius x .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) 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.

Note:  Beginning in 2018, the manufacturer will no longer be including the acrylic plug in this product. When thier current inventory is exhausted, plugs will be available upon special request only. This non-essential feature has long been considered optional per block specifications and is largely obsolete.

From: $781.00


We pride ourselves in providing fast deliveries. However inventory changes rapidly and on occasion some items may not be in stock. If you require an expedited shipment, please contact us via e-mail or call our office to confirm availability of an item. *Nominal lead times vary by product.

Product Information
  • Dimensions:  12.0″ x 4.0″ x 1.0″
  • Fitted wooden storage case optional.

Metric Versions available.

Looking for a Block made from an exotic alloy?  You’ve come to the right place!  If you don’t see what you need, please contact us for a quote.

We can offer blocks in Titanium alloys, Inconels and other Nickel alloys, Alloy Steels, Stainless Steels, Aluminums, Copper-Nickels, Brasses, Cast Irons, refractory alloys such as Molybdenum and Tungsten, and many more.


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