rock drill
Quick Summary
A rock drill is a machine designed for making holes in rock. These tools are essential for various activities, including tunneling, mining, and excavating, often to prepare for blasting charges.12
Modern drilling machines generally fall into two categories: percussive drills, which chip rock through impact, and rotary drills, which use a cutting or grinding action. Some drills combine both methods for harder rock strata.2
Early rock drills were often operated manually, with one person turning the drill while another swung a hammer. Significant advancements in the 19th century, particularly the development of the compressed-air drill, revolutionized the process. Innovations like hammering action and pneumatic feeds are key features in contemporary machines.2
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