Drill Bit With A Predictable Tendency To Reduce Its Angle of Inclination

A drill bit 10 tends to reduce its angle of inclination as it penetrates underground formations. The bit 10 includes an active region 120, a passive region 140, a biased mass distribution, an uneven torque generation and a resultant imbalance force vector directed towards the middle of the active region 120. Cutting elements in the active region 120 of the bit 10 are more aggressive than those in the passive region 140 through manipulation of, for example, backrake angle, blade length, cutter size, blade angle, and bit profile. The imbalance force vector may be achieved by manipulation of bit geometric parameters such as cutter radial position, angular position, longitudinal position and rake angle.