HQ Surface Set Polycrystalline Diamond (PCD) Core Drill Bits deliver exceptional penetration rates and performance in hard rock formations. These industrial-grade bits feature a singular layer of PCD diamonds set in a hard matrix compound for maximum drilling efficiency.

• High penetration rate for faster drilling operations
• High speed capability with superior performance
• Available in crown heights: 9mm, 12mm, and 16mm
• Designed specifically for hard rock formations
• Surface-set diamond design prevents premature matrix wear

Q Series: AQ, BQ, NQ, HQ, PQ, BQ3, NQ2, NQ3, NQTT, HQ3, HQTT, PQ3, PQTT

T2 Series: T2 46, T2 56, T2 66, T2 76, T2 86, T2 101

T6 Series: T6 76, T6 86, T6 101, T6 116, T6 131, T6 146, T6S 101

Additional Series: T Series, Z Series, B Series, WG Series

Custom non-standard sizes available upon request with detailed specifications.

Surface-Set PCD Core Bits are ideal for drilling soft to medium-hard abrasive formations where impregnated diamond bits are less effective. They perform exceptionally well in hard rock formations where equipment limitations restrict rotational speeds and bit loads.