• Numa will be exhibiting at Groundwater Week December 15 – 16, 2021 in Nashville, TN. Come see us in booth 802.

The World's Leading Rock Drilling Equipment

Hammers - Bits - Accessories - Support
Made in the USA

DTH and HDD Drilling Products for a Wide Range of Applications


Numa is the world’s leading drilling technology provider, dedicated to ongoing product innovation and results-oriented consistency. For 35 years, we’ve built a strong legacy of high quality, made in the USA rock drilling hammers and bits for vertical, horizontal, and reverse circulation holes 3½ to 50½ inches (89 – 1283 mm) in diameter.

Rock Drilling Hammers, Bits, Accessories & Support

What Sets Numa Apart

  • Made in the USA quality and dependability
  • Expert onsite and remote technical support
  • Dedicated, in-house engineering team
  • Over 110 products for drilling in hard rock, overburden, or loose strata
  • Configurable designs for various drilling needs
  • Highest value in product performance and personal service
  • Serving the construction, oil & gas, mining, quarry, geothermal, water well, HDD, horizontal boring equipment, and other rock drilling industries

Our customers around the world use Numa’s deep hole drilling products in a wide range of applications from just a few feet to 1000’s of feet/metres deep. In fact, one of the deepest holes on record was drilled to 17,600 feet (5364 m) below the surface. Now that is performance! For more information on our dependable, durable DTH Drills and HDD Hammers and Bits, contact us today.

Our commitment gives our customers the peace of mind that we’ll always be the DTH manufacturer leader in rock drilling equipment with the industry’s best performing, most reliable DTH rock drilling products and the industry’s best service and support.

  • rock drilling equipment
    Innovation and Configuration

    Numa has always been focused on delivering results. We understand that one size does not fit all so we are committed to providing unrivaled innovation and configuration options. We partner with drillers to gain first-hand insight for advancing DTH product designs. This has led to pioneering the development of leading drilling technologies, including large diameter hammers and bits, HDD drilling systems, dual fluid systems, ring bits, and over-burden products.

  • DTH Drilling System
    Unparalleled Customer Support

    Numa’s dedicated drilling experts provide unparalleled customer support. Whether it is consulting on a difficult project where specialized directional boring drills are required or assisting with choosing the best down the hole drills for the job, our team can provide the insight and know-how to get the job done. Many of our team members have over 20 years of experience, allowing our customers to receive expertise that only years in the industry provides.

  • DTH Hammers
    Unmatched Quality and Consistency

    For decades, Numa has built a strong legacy of unmatched quality and consistency in each and every product we design and manufacture in our U.S. factory. We use the best materials, invest in the latest machine tools, and utilize rigid manufacturing practices so our products deliver in the field. Our Quality Test Certificate ensures products have been tested and fully conform to Numa’s rigid quality standard.

Horizontal Drilling Equipment

Horizontal Directional Drilling (HDD) is a method of installing underground pipelines, cables, and service conduit through trenchless methods. Numa’s horizontal directional drilling tools are a good fit for installing infrastructure such as telecommunications and power cable conduits, water lines, sewer lines, gas lines, oil lines, product pipelines, and environmental remediation casings. Many of our customers have found great success using HDD products when crossing underneath waterways, roadways, congested areas, and environmentally sensitive areas where other methods are costlier or not possible due to rock.

Numa offers a wide variety of HDD drilling systems consisting of HDD hammers, bits, side load sonde housings, bent subs and adaptors capable of drilling holes 3⅞ – 7½ inches (98 mm to 191 mm) in diameter. Some of the many benefits Numa touts for the HDD product line include: improved steerability, fast penetration rate, simplified field maintenance, reduced air requirements, and lower overall cost per foot. Check our our HDD Product Page for more information.

Numa Technology Around the Globe

See Us in Action

Numa serves a global customer base with our vertical drilling tools and horizontal directional drilling equipment at work on every continent and tough job site there is. Our drilling equipment is built to last.


Recent News

Numa Announces Casing Ring Bit Systems
July 1, 2021

THOMPSON, CONNECTICUT USA Numa, the world’s leading drilling technology provider, has announced a new range of Casing Ring Bit Systems for simultaneously drilling and casing…

Numa to Exhibit at IFCEE May 10 – 14 in Dallas
April 26, 2021

THOMPSON, CONNECTICUT USA –  Numa, the world’s leading drilling technology provider, will be exhibiting at IFCEE 2021 on May 10-14, 2021 in Dallas, Texas. Numa…

Forward-Thinking Designs Built to Last.

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