BQ, NQ, HQ, PQ
Customized
AISI, API
Customized
Core Drill Bit
Diamond
Metal Drilling
F1-F12
Geological Exploration
Drilling Equipment
Sinter
Bq Bq3 Nq Nq2 Nq3 Hq Hq3 Pq Pq3
BEST
Standard Protective Packaging
Customized
China
Product Description
Customized diamond core bits for exploration drilling
Product Features
High-Quality Materials: Our diamond drill bits are made from high-grade industrial diamonds, ensuring outstanding performance under various rock and geological conditions.
Superior Cutting Performance: With advanced manufacturing techniques and scientific design, our drill bits possess excellent cutting abilities, efficiently penetrating hard rock layers and improving work efficiency.
Strong Durability: Our drill bits undergo rigorous quality control, featuring excellent wear resistance and impact resistance, which leads to a longer lifespan and reduced replacement and maintenance costs.
Diverse Options: We offer a variety of specifications and models of diamond drill bits to meet the needs of different geological exploration projects. Whether dealing with soft soil layers or hard rock formations, we provide the right drill bit for your project.
Best Drilling manufacture and supply various type of core bits:
Impregnated diamond bits
Surface set diamond bits
Tungsten Carbide drill bits
PDC drill bits



Available Sizes
Impregnated Diamond Core Bits | AQ, BQ, NQ, HQ, PQ, NQ3, HQ3, PQ3, BWM, BWG, NWM, NWG, NMLC, HMLC, LTK48, LTK60, T246, T256, T266, T276, T286, T2 101, T6 101, T6 116, T6 131, T6 146, B46, B56, B66, B76, B86, B101, B116, B131, B146 |
Surface set diamond bits | AQ, BQ, NQ, HQ, PQ, NQ3, HQ3, PQ3, BWM, BWG, NWM, NWG, T246, T256, T266, T276, T286, T2 101, T6 101, T6 116, T6 131, T6 146, B46, B56, B66, B76, B86, B101, B116, B131, B146 |
Main Manufacture and Supply Scope
- Drill rod
- Impregnated diamond core bits
- Surface set diamond bits
- Casing rod, casing shoes and casing bits
- Reaming shells
- Coring PDC bits
- Non-coring PDC bits
- Core barrel assembly and overshot
- drilling accessories include: inner tube, outer tube, locking coupling, adaptor coupling, inner tube stabilizer ring, landing ring, stop ring, etc.
- Other customized exploration core drilling tools&parts

Type | AQ/B | BQ/B | NQ/B | NQ3/B | HQ/B | HQ3/B | PQ/B |
O.D(mm) | 47.7 | 59.6 | 75.4 | 75.4 | 95.7 | 95.7 | 122.3 |
O.D(inch) | 1.88 | 2.35 | 2.97 | 2.97 | 3.77 | 3.77 | 4.81 |
I.D(mm) | 27.1 | 36.5 | 47.7 | 45.2 | 63.6 | 61.2 | 85.1 |
I.D(inch) | 1.07 | 1.44 | 1.88 | 1.78 | 2.50 | 2.41 | 3.35 |
Type | PQ3/B | NWM/B | NWG/B | NMLC/B | HMLC/B | NQTT/B | HQTT/B |
O.D(mm) | 122.3 | 59.6 | 75.4 | 75.4 | 98.9 | 75.4 | 95.7 |
O.D(inch) | 4.81 | 2.35 | 2.97 | 2.97 | 3.89 | 2.97 | 3.77 |
I.D(mm) | 83 | 36.5 | 54.8 | 52.1 | 63.6 | 45 | 61.1 |
I.D(inch) | 3.26 | 1.44 | 2.16 | 2.05 | 2.5 | 1.77 | 2.4 |
Job site
Q1. Where is your factory?
A1: Our factory is located in Wuxi, Jiangsu, China, it takes only about 2 hours driving from Shanghai.
Q2. How do you control quality?
A2: ISO9001 has been passed. Mill Test Certificate is supplied , meanwhile the Third Party Inspection is available according to customers' requirement.
Q3. What are the advantages of your company?
A3: We have many professionals, technical personnel, more competitive prices and best after-sales service than other companies.
Q4. Can you arrange the shipment?
A4: Yes, of course, we have our forwarders which has cooperated with us for years.
Q5. How about the delivery time?
A5: It will be decided by the orders. Normally within 3 days after receiving your advance payment if we have stock.
Q6. Can you provide sample?
A6: Small samples in store can be provided for free.