PACS® Notch Block, Special Alloy

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The PACS® Notch Block has been specially designed for use with Phased Array instruments used for sizing of OD and ID-connected cracks. The block contains four EDM slots at depths of 20, 40, 60, and 80% and a width of 0.031". Standard thickness is 1.000"; however, other sizes can be ordered. Designed jointly by PH Tool LLC and Davis NDE.


  • Dimensions: 1.000" thick x 2.000" wide x 7.00" long
  • In accordance with PH Tool Drawing No. 10210
  • Alloy: PH Tool specializes in custom blocks, and all of our test blocks are available in special and exotic alloys. Please contact us for a quote. We can machine 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. Let us build your next special alloy test block!