Numa, the world’s leading drilling technology provider, has announced the addition of Jared Griffiths as a Field Technician. The addition of Griffiths further expands the field support team that has been synonymous with Numa for the past 30 years.“Numa continues to support our customers both in engineering of superior products and on the job site technical support,” said Numa President Ralph Leonard. “The relationship with our customers is paramount to our success and we are committed to providing expertise in the field where it is needed most. Jared’s addition further reinforces Numa’s dedication to being a trusted partner with our customers on the job site and beyond.”

In this role, Griffiths will support Numa customers on hammer start-ups and on-going technical support. He will advise drillers on best practices for using Numa products including critical insights on drill prep, assembly, air pressure, weight on bit, rotation speed, and drilling techniques to optimize performance. His role also includes consulting and test engineering to determine the most appropriate hammer and bits for ground conditions being encountered on jobs.

Griffiths has worked his way up through Numa’s manufacturing and field operations teams, holding a wide range of roles that has given him an unparalleled depth of understanding of DTH products. In addition to providing field support, Griffiths has previously held positions where he manufactured hammer and bit parts in addition to roles where he was responsible for assembly and repairs. All of Griffiths’ experience provides drillers a critical resource with in-depth knowledge into how Numa products are built, how they operate, and how customers can best maximize performance.


Numa provides the world’s leading drilling technology with over 100 DTH Hammer and Bit products serving 11 different industries. Our products are capable of drilling vertical, horizontal, and reverse circulation holes from 3½ to 48 inches (89 – 1219 mm) in diameter and are used in 105+ countries. We have built our customer-centric reputation on providing the highest value in products, performance and personal service available in the rock drilling industry.