rock drill

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ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.Rock drill - a drill for penetrating rockrock drill - a drill for penetrating rock  
cross bit - a rock drill having cruciform cutting edges; used in mining
drill - a tool with a sharp point and cutting edges for making holes in hard materials (usually rotating rapidly or by repeated blows)
star drill - a steel rock drill with a star-shaped point that is used for making holes in stones or masonry; it is operated by hitting the end with a hammer while rotating it between blows
straight flute, straight-fluted drill - a rock drill with flutes that are straight
References in periodicals archive ?
By using an optimum drill bit for a given rock drill, the system efficiency can be maximized.
Efficiency is defined as the ratio between the energy that is used for crushing the rock and the energy that is dispatched by the rock drill piston.
The DCR20 from Furukawa Rock Drill has established itself as a reliable, productive resource for drilling operations, according to the company.
The British Geological Survey (BGS) has been granted funding from the Natural environmental research council for a new portable winch and umbilical for the remote seabed rock drill
Availability is a sure thing with the powerful new HPR3818 rock drill and feed system that eliminates 60% of mechanical parts for high reliability.
The COP 4050 is a 390 kg top-hammer rock drill with an impact power of up to 40 kW and rotation torque of 2,500 Nm.
It was recognised that if a rock drill could be designed to operate solely on water, the system could be much simplified, the hydro-transformers eliminated, and only one hose run to each drill instead of the present three.
High reliability, long life and low ownership costs characterize the MD5150C rock drill.
Benefiting from more than 50 years of track drill design, the MD5150 incorporates a proven rock drill, patented carousel rod changer, new cab and many other features that boost productivity and reduce operating costs.
The EarthPro Series DD-3238 Hard Rock Drill System is developed specifically for those difficult drilling jobs, including solid rock up to 47,000 psi.
The rock drill factory covers an area of 2,800 square meters, and is directly connected to the spare parts center.
The new mining technique to be used on the lower levels is planned to a large extent around Atlas Copco's new Simba H4000 concept, incorporating the new COP 4050 rock drill, a new electrically-controlled drilling system and a further developed tube string with an 87 mm guide tube and 115 mm guide bit.