Numa is the world’s leading designer of rock drilling equipment 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 - 1,219 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 marketplace.
SKF has been a leading global technology provider since 1907. Our fundamental strength is the ability to continuously develop new technologies – then use them to create products that offer competitive advantages to our customers. Consider the unique combination of linear and rotary motion...
Numa offers the largest range of conventional down hole hammers and bits available in the drilling industry today. Unmatched in longevity and penetration rates, these performance driven Patriot®, Champion® and Challenger® hammer models are able to drill holes from 3-1/2" to 48" (89 - 1219 mm) in... Read more
Numa has led the industry in innovative design of reverse circulation hammers and bits. These RC products have the unique ability to bring all cuttings up the center of the hammer and drill string to be safely collected at the surface, which is essential in today's environmentally conscious... Read more
Drilling through unconsolidated ground conditions in order to set casing into bedrock is one of the most challenging tasks facing the drilling industry. That is why Numa has spent so much time and energy designing a drill bit that can drill a larger diameter hole than the casing, while... Read more