Definition of Rock drill

1. Noun. A drill for penetrating rock.

Exact synonyms: Bore Bit, Borer, Stone Drill
Specialized synonyms: Cross Bit, Star Drill, Straight Flute, Straight-fluted Drill
Generic synonyms: Drill
Derivative terms: Bore



Rock Drill Pictures

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Lexicographical Neighbors of Rock Drill

rock bun
rock buns
rock cake
rock candy
rock climber
rock climbing
rock cocaine
rock concert
rock crabs
rock cress
rock crystal
rock dots
rock dove
rock doves
rock drill (current term)
rock elm
rock face
rock faces
rock garden
rock geranium
rock group
rock groups
rock gunnel
rock harlequin
rock hind
rock hopper
rock hound
rock hyrax

Literary usage of Rock drill

Below you will find example usage of this term as found in modern and/or classical literature:

1. The Encyclopedia Americana: A Library of Universal Knowledge (1919)
"rock drillS AND rock drill- ING. The steam or rock drill is known to-day as an American invention and its inception dates back to the excavation of the ..."

2. The Encyclopedia Americana: A Library of Universal Knowledge (1919)
"The steam or rock drill is known to-day as an American invention and its inception dates back to the excavation of the Hoosac Tunnel in Massachusetts. ..."

3. Journal by Iron and Steel Institute (1892)
"Electric rock drill.—A new form of percussive rock drill, operated by an electric motor, has been brought out by Messrs. Roper and Tozer. ..."

4. Transactions of the American Institute of Mining, Metallurgical and (1922)
"Breakage and Heat Treatment of Rock-drill Steel BY BENJAMIN F. TILLSON,* EM, FRANKLIN, NJ (New York Meeting, February. 1921) To MOST mine operators, ..."

5. Appletons' Cyclopædia of Applied Mechanics: A Dictionary of Mechanical by Appleton, firm, publishers, New York (1880)
"Too high a piston speed is undesirable in a rock-drill mainly for two reasons : First, ... External gear in a rock-drill is especially to be avoided. ..."

6. The Americana: A Universal Reference Library, Comprising the Arts and ...by Frederick Converse Beach, George Edwin Rines by Frederick Converse Beach, George Edwin Rines (1912)
"The steam or rock drill is known to-day as an American invention and its inception dates back to the excavation of the Hoosac Tunnel in Massachusetts. ..."

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