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YouTubeThe Rustic Pantry
Gravity's Drill: How a Falling Hammer Powers Through Rock
**The Mechanics of Impact Excavation** This process showcases percussion or cable-tool drilling, one of the oldest and most mechanically straightforward well-drilling methods. The technique relies not on rotational torque but on the direct transfer of kinetic energy from a repeatedly lifted and dropped weight. The drill bit itself, often a ...
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