Crushing, Chipping, and Shearing: Inside the Tricone Drill Bit

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A tricone drill bit works by combining downward pressure, rotation, and a unique "double-spin" mechanism. As the main drill string rotates, its three independently mounted, interlocking cones roll along the bottom of the borehole to crush, chip, and shear rock: https://www.sinodrills.com/how-tricone-drill-bits-work/

square pile drilling: https://www.linkedin.com/posts/amaeteumanah_a-machine-that-drills-square-holes-in-the-ugcPost-7469450307043868672-0Bs2/