Drilling 101

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Drilling Basics & Terminology

The drill machine turns the steel, the steel turns the bit, the bit turns the cones. Weight is applied by the drill + the weight of the drill string. The total weight pushes the carbide buttons in the 3 cones, into the rock. The bit carbides must stress the rock to make the rock fail to create chips. Air (pressure) flushes the chips away from the buttons and air volume pushes them up and out of the hole.

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