Surface Set Diamond Reaming Shells BQ NQ HQ | with Core Bit | for Geological Drilling

Surface Set Diamond Reaming Shells BQ NQ HQ | with Core Bit | for Geological Drilling

Product Description:

Our Surface Set Diamond Reaming Shells are precision-engineered tools designed to couple seamlessly with your core bit and core barrel. The primary function is to ream and maintain a consistent, accurate hole diameter throughout the drilling process. This critical action stabilizes the entire drill string, reduces deviation, minimizes bit wear, and ensures smooth core recovery in geological, mining, and hydrogeological exploration.

Why Choose Our Reaming Shells?

Superior Drilling Stability: Acts as a key stabilizer, preventing wobble and ensuring a straight, true borehole for higher-quality cores and extended tool life.
Guaranteed Hole Gauge: Precisely reams the hole to the correct diameter, providing essential clearance for the core barrel and the next replacement bit, eliminating downhole obstructions.
Optimized Diamond Application: Features 20/30SPC natural (or synthetic) diamonds strategically set on the surface for efficient cutting in medium to hard formations. Smooth, well-designed waterways ensure effective flushing of cuttings.
Full Compatibility: Manufactured to strict DCDMA standards, available in all standard “Q” series sizes (BQ, NQ, HQ, RQ, PQ) and other series (T2, T6, etc.), ensuring perfect thread match with your existing drill string.

Technical Specifications & Types

We offer a complete range to match your specific ground conditions:

Type	Best For	Key Advantage
Surface Set Diamond	Medium-Hard, Abrasive Formations	Fast cutting, excellent gauge holding
Impregnated Diamond	Very Hard, Crystalline Rock	Long life, consistent performance
Tungsten Carbide	Soft to Medium Formations	Cost-effective, durable
PCD (Polycrystalline Diamond)	Highly Abrasive, Non-Consolidated	Extreme abrasion resistance
Electroplated Diamond	Concrete, Asphalt, Reinforced Rock	Fast, economical for specific applications