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Best Practices in Sourcing Custom Reference Standards

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Meet the Team

Our entire staff of skilled toolmakers, machinists, technicians, customer service, and support personnel is dedicated to the development and manufacture of the finest quality reference standards available today. Our robust growth and excellent reputation in the Non-Destructive Testing (NDT) world can be attributed to our emphasis on quality, attention to detail and innovative approaches to meeting the reference standard needs of our valued customers.

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About PH Tool

PH Tool Reference Standards, headquartered in Pipersville, PA, has supplied the NDT industry with high quality Reference Standards and Test Blocks since its founding in 1973.

Whether you need EDM notches, Flat-bottom holes, Micro-holes, or Test Blocks, PH Tool can handle your order. We are a family-owned and managed business, started in 1973 by Phil Herman Sr., Founder/Chief Technology Officer. Phil Herman Jr. joined the business in 1991 and now serves as President/CEO. Phil Herman Jr. is a graduate of Drexel University (BS) in Philadelphia, PA and Villanova University (MBA) in Villanova, PA and joined the company after a decade in program management in the aerospace industry.

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