BQ/NQ/HQ/PQ Full-Specification Wireline Coring Diamond Core Bits

1.Description

BQ, NQ, HQ, and PQ diamond core bits form a complete range of wireline coring tools, engineered to deliver precise, high-integrity rock samples across diverse drilling scenarios. From shallow geological surveys to deep mineral exploration, these bits are designed to match standard wireline coring systems, ensuring compatibility with most industry-leading rigs and core barrels while maintaining exceptional performance in formations ranging from soft soil to ultra-hard rock.
Key Specifications, Sizes & Applications
Each model is tailored to specific depth ranges and formation types, with standardized dimensions to ensure seamless integration into drilling operations:
BQ:
Bit diameter: 43.0mm
Compatible core barrel: BQ
Optimal drilling depth: ≤200 meters
Primary applications: Shallow geological mapping, environmental soil sampling, and small-scale foundation testing. Excels in soft to medium formations such as clay, sand, and weakly cemented sandstone, providing intact cores for preliminary geochemical analysis.
NQ:
Bit diameter: 75.7mm
Compatible core barrel: NQ
Optimal drilling depth: 200–500 meters
Primary applications: Versatile mid-range coring for mineral prospecting (coal, iron ore), groundwater exploration, and civil engineering foundation detection. Performs reliably in medium-hard formations like limestone, shale, and low-grade metamorphic rock.
HQ:
Bit diameter: 96.0mm
Compatible core barrel: HQ
Optimal drilling depth: 300–800 meters
Primary applications: Hard rock drilling for mining exploration (precious metals, industrial minerals), tunnel construction surveys, and deep borehole logging. Efficiently cores through granite, gneiss, and moderately abrasive formations while maintaining high core integrity.
PQ:
Bit diameter: 122.6mm
Compatible core barrel: PQ
Optimal drilling depth: ≥500 meters
Primary applications: Ultra-deep drilling in ultra-hard or fractured formations such as basalt, quartzite, and deep-seated igneous rock. Critical for geothermal well development, deep mineral exploration, and large-scale infrastructure projects requiring large-diameter core samples.

2.Product Parameters
 

3.Detailed Photos

4.Related product
We can also support Core Drilling Machine:
SKID TYPE:



5.Packaging & Shipping
Packing: Seaworthy Packing
Delivery: about 30 days after your down payment.

Company Profile

Glorytek Industry (Beijing)Co.,Ltd., located inBeijing,China, is an integrated corporation specialized in manufacturing and exporting top quality drilling equipment and drilling parts for decades. We are supported and assisted by a highly experienced team of designers and engineers that enable us to complete all the assigned projects successfully as per the specified requirement from our clients.

FAQ
Q: How can we choose a suitable water well drill rig?
A: We normally recommend a suitable model according to drilling depth, drilling hole dia. and layer condition on site.

Q: Are you a factory or a trading company ?
A: We are an integrated corporation specialized in manufacturing and exporting.

Q: What is your payment terms?
A: We can accept T/T,L/C.

Q:.What is your MOQ? How long is the delivery time?
A: Our MOQ is 1 sets. Normally for drill rig, the delivery time is about 25-30 days after receiving payment, the drilling tools would be about 3-5 days.

Q:. How long is the warranty?
A: The guarantee period for mainframe is one year (excluding the quick wear parts).

Q: Can we print my Logo on the products?
A: Yes, we can. We support OEM .