It is used to break and shear the rock of the ground.

The oil well drill bit is a cutting tool designed to penetrate and crush rock formations during rotary drilling operations. Manufactured in compliance with API Spec 7, the drill bit is connected to the bottom of the drill string and rotated under applied weight to advance the wellbore. Available in two primary categories-roller cone bits and fixed cutter bits-these tools incorporate precision-engineered cutting structures, bearing systems, and fluid circulation nozzles to optimize penetration rates and bit life. Each bit is configured for specific formation types, ranging from soft, unconsolidated sediments to hard, abrasive rock.