Palmer Bit Company’s Diamond Devil PDC features grade 5 wing design that is more durable than 3 and faster than 6. Gauge pads have tungsten carbide inserts for maximum wear resistance. All cutters are premium grade for extended bit life and durability. Cutter layout is force balanced to drill a precise round hole and reduce bit whirl. The large side circulation ports and oversized junk slots help reduce balling and plugging. The Diamond Devil PDC comes in 4-, 5- and 6-wing designs to meet diverse needs of drillers.