Drilling Tools --- Reaming Shell

Reaming shell (reamer), a key wireline core drilling tool widely applied in geological exploration, mineral mining and water well drilling, serves to enlarge borehole diameter, maintain hole gauge, stabilize hole walls and guarantee straight, smooth drilling. 
Mounted above the core barrel, it reams holes to the specified size during coring and shields the core barrel and drill bit against wear and deviation. 
Our diamond reaming shell adopts premium diamond particles and robust alloy base, boasting outstanding wear resistance, high concentricity and reliable drilling performance. 
It effectively corrects hole deviation, ensures steady advancement of core drill rods, greatly boosts drilling efficiency and prolongs the service life of the whole drilling tool set.

BQ  NQ  HQ  PQ Reaming Shell

Construction & Material

*High-strength alloy steel body: Forged & heat-treated, high toughness, anti-impact, durable for deep and hard rock drilling.
*Diamond impregnated / surface-set: Premium natural or synthetic diamond, high hardness, excellent abrasion resistance, long service life.
*Spiral gauge pads & waterways: Optimized spiral design reduces drilling resistance, improves cuttings removal, prevents bit balling and stuck pipe.
*Standard DCDMA threads: Compatible with AQ/BQ/NQ/HQ/PQ wireline core barrels, easy to connect and replace.

Key Features & Advantages
*High efficiency & long life: Single reamer footage up to 3,000 m+, pure drilling time 250 h+, reduces trip-out frequency and lowers cost.
*Excellent gauging & stabilization: Strong centering & straightening effect, minimizes hole deviation, ensures borehole roundness and stability.
*Superior cutting & removal: Sharp diamond edges + spiral waterways, fast reaming, smooth cuttings discharge, suitable for soft to extremely hard formations.
*Wide formation adaptability: Works in clay, sandstone, limestone, granite, and broken formations; ideal for deep hole and complex strata.
*Reliable quality: ISO certified, strict quality control, consistent performance in harsh drilling conditions.