Compared with conventional impregnated or surface-set diamond core bits, PDC core bit uses an evenly distributed end-face cutter layout that shears rather than grinds the rock. Designed for core drilling in coal and rock foramtions, these bits provide efficient rock breaking and high-integrity core recovery for geological exploration.

Standard Core Bit

The Standard PDC Core Bit is designed for F ≤ 8 medium-soft to medium-hard, competent formations. An evenly distributed end-face PDC layout shears the rock efficiently, while a dual-gauge design maintains diameter and suppresses under-gauge wear. Optimized flow paths/nozzles support clean evacuation and cooling. This model offers broad applicability,strong cost-performance, smooth penetration, and simple upkeep, ideal for routine exploration and short-to-medium coreruns.

Surface Set Core Bit

Uses fine-grained natural or synthetic diamonds distributed throughout the matrix body. As drilling progresses, the matrix wears away gradually, exposing new sharp diamond layers for continuous cutting.