The Vanguard plug drillout bit’s cutting structure directs the limited available weight on bit (WOB) to crush cast iron and tungsten carbide CBPs into smaller cuttings. As a result, production flows more smoothly and cleanly with less debris. Compared to traditional mill-type bits, the Vanguard plug drillout bit drills with lower torque spikes, which protects the bottomhole assembly (BHA) from motor stalls. The bit also drills faster and through more plugs per bit than competing roller cone products, saving bit trips over time. A slimhole bit ranging in size between 4 1⁄8 in. to 4 5⁄8 in., the Vanguard plug drillout bit is especially effective in low WOB runs and can be run at rotation speeds ranging between 80 to 350 rpm.