The challenges drillers face when drilling in mines and quarries are well documented the world over. Drilling in fractured rock; what to do with an uneven rock floor following a blast; holes that collapse due to an influx of water; heavily fractured rock that eventually collapses; filling a hole, partly or completely, with explosives.

​You will mainly find In–The–Hole tools (ITH) and bits suitable for geotechnical core sampling in soft unconsolidated to medium hard consolidated formations.

The QL Series of Down the Hole hammer drills by TerraRoc has become the go-to choice for drilling experts worldwide. With its unmatched versatility and reliability, the QL hammer series has firmly established itself as the leading option for oil and gas, well drilling, and construction projects.

Our revolutionary Wireline HPD (High Pressure Dilatometer) System eliminates the need for drill rods when conducting HPD tests, thereby reducing manual handling and significantly increasing productivity.

The challenges drillers face when drilling in mines and quarries are well documented the world over. Drilling in fractured rock; what to do with an uneven rock floor following a blast; holes that collapse due to an influx of water; heavily fractured rock that eventually collapses; filling a hole, partly or completely, with explosives. Sounds familiar?

Drilling through this so-called overburden is often problematic, due to the tendency of the earth to cave in behind the drill bit. This makes it difficult to retrieve the drill string after the hole has been drilled. In practice, the bore hole is often lost before a casing tube can be inserted to support it.

TerraRoc’s large DTH hammers offer exceptional drilling capabilities, perfectly suited for efficiently installing utility power poles. Using the PPD 120 pole drill model, this truck mounted drilling system can drill sockets in solid rock faster and more efficiently than both auger drilling or blasting methods.

Our revolutionary 115mm DTH drill bit that drills faster, deeper, and with less bit wear than anything else on the market. Tested in the toughest Scandinavian conditions, X-Roc has consistently outperformed the drillers expectations.

Casing advancement systems can be used in a wide range of applications where you need to drill in difficult ground conditions. The following are examples of the most common applications.

Cities and urban areas around the world are continuously being modernized with infrastructures developed to match increasing traffic flows. As a result, tunneling projects are moving into more challenging conditions such as soil, weak rock, and shallow overburden in already developed areas.

Symmetrix and Elemex systems are part of a total overburden drilling solution from TerraRoc. They are used in both DTH and tophammer drilling, and the choice of solution depends primarily on the drilling conditions on site. The casing advancement systems are available either as a solitary ring bit or as a ring bit set.