Certified Step Blocks

Ideal for testing the calibration and functioning of ultrasonic thickness gages, they are a vital component in meeting both ISO and in-house quality control standards.

  • Made from 1018 steel and nickel-plated for corrosion and wear resistance
  • Long-form Certificate of Calibration and Material Test Report included


  • Name/Description Order Code
    Certified Step Block B1 (Imperial)
    • Ideal for use with PosiTector UTG C, CA, CLF, CX, and M probes
    • 100, 200, 300, 400, and 500 mil steps
    • Accuracy: +/- 1 mil
    STDB1
    Certified Step Block B1M (Metric)
    • Ideal for use with PosiTector UTG C, CA, CLF, CX, and M probes
    • 2.5, 5, 7.5, 10, and 12.5 mm steps
    • Accuracy: +/- 0.025 mm
    STDB1M
    Certified High Range Step Block B2 (Imperial)
    • Ideal for use with PosiTector UTG C, CA, CLF, CX, and M probes
    • 1.000”, 1.500”, 2.000”, 2.500”, 3.000”, 3.500”, 4.000”, and 4.500” inch steps
    • Accuracy: +/- 0.002”
    STDB2
    Certified High Range Step Block B2M (Metric)
    • Ideal for PosiTector UTG C, CA, CLF, CX, and M probes
    • 25.0, 37.5, 50.0, 62.5, 75.0, 87.5, 100, and 112.5 mm steps
    • Accuracy: +/- 0.04 mm
    STDB2M
    Certified Step Block P (Imperial)
    • Ideal for use with PosiTector UTG P probe
    • 40, 60, 80, 100 mils (labeled in Imperial units only)
    • Metric equivalent: 1, 1.5, 2, and 2.5 mm
    • Accuracy: +/- 1 mil
    STDUTGP

    For use with the PosiTector SST

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