Diamond Core Drill Bits for Exploration Core Drilling
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 |
