PH Tool™ Proudly Serves the Following Industries

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Manufacturing flat bottom holes

Learn how PH Tool produces flat bottom holes that are truly flat, and how we can help you create a “perfect” reference standard for your next NDT project.  

Watch our EDM notch creation process

The EDM notch creation process involves the removal of material with an electrode under carefully controlled conditions. See how PH Tool does it.

See our nickel plating capabilities

PH Tool is the only NDT manufacturer that takes this process entirely in-house in order to maintain our quality standards and shorten lead times.

About PH Tool

PH Tool Reference Standards, headquartered in Pipersville, PA, maintains a staff of skilled toolmakers, machinists, technicians, and professional management personnel (40 people and counting) dedicated to the development and manufacture of the finest quality Reference Standards available today. Our robust growth and excellent reputation in the NDT world can be attributed to our emphasis on quality, attention to detail, and innovative approaches to the most challenging requirements of our valued customers.

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Who We Are

PH Tool Reference Standards has supplied the Nondestructive Testing (NDT) industry with high-quality Reference Standards and Test Blocks since its founding by Phil Herman Sr. in 1973. Whether you need EDM notches, Flat-bottom holes, Micro-holes, or Test Blocks, PH Tool can handle your order.

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