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TPG Triple Path Glass Calibration Block

Made in the USAThe TPG triple path glass calibration test block enables accurate and convenient zero calibration of ultrasonic bolt tension meters. 
Due to the used aerospace grade glass material this test block is insensitive against temperature changes.

The TPG glass calibration block features 3 testing paths: 1", 2" and 3".

The blocks are precision made from ultrasonically tested glass and include a NIST traceable calibration certificate, as well as a foam fitted hard plastic carrying case.


  • Temperature insensitive aerospace grade glass
  • Precision machined and finished
  • Highest accuracy and repeatability
  • Delivered with NIST traceable calibration report
  • Includes foam fitted carrying case

UnitPath 1Path 2Path 3
mm25,4 mm50,8 mm76,2 mm

TBW-2000 Test block weight

TBW-2000 load weight

The TBW-2000 stainless steel zero calibration weight is used to achieve a constant load on the ultrasonic probe.

Removing the operator and temperature influence it increases the repeatability of the measurement.

  • High quality stainless steel
  • Improves accuracy
  • Easy to use
  • Perfect repeatability
  • Recommend for zero procedure using triple path glass block or steel calibration bars

Buy Now

TPG - Triple Path Glass Calibration Block - 3" x 2" x 1"
€ 1.371,00 
TPG-KIT - Triple Path Glass Calibration Kit
€ 1.338,00 

TBW-2000 Test block weight
€ 185,00 
All mentioned prices are excluding VAT & excluding shipment costs.
Availability: Available: 1 - 3 days, Delivery time: 1 - 3 weeks, special order request

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