NQ Diamond Core Bit

Our diamond core drill bits (diamond core bit) consist of impregnated diamond core bits, surface set diamond core bits, TSP diamond core bits, electroplated diamond core bits, reaming shells, casing shoe bits, core barrels and other drilling tools.

Surface set diamond core bits can be used with any type of core barrels.
Surface set diamond core bits are primarily recommended for use in drilling relatively soft, abrasive, unconsolidated formations, Surface set diamond core bits cannot be used in broken or loose formations.

The diamonds are mounted in a bit crown powdered metal matrix body that is fused to a steel tool body or shank. The metal bond matrix used for all surface set bits is extremely tough and wear resistant. The function of the bit crown matrix body on a Surface set diamond core bits is to securely hold the diamonds in position throughout the operational life of the bit.

In most cases, Surface set diamond core bits will provide higher rates of penetration than impregnated diamond core bits in softer formations due largely to the greater degree of exposure of the individual diamond crystals. However, as Surface set diamond core bits are set with only a single layer of diamond crystals, Surface set diamond core bits will generally yield a lower overall bit life than impregnated diamond core bits.

Size Available:
1. A-Gauge Core Bits: AQ, AQ-RSG, AWG(AX), AWM, AWT, LTK48
2. B-Gauge Core Bits: BQ, BQ-RSG, BQ-2.400, BQ3, BWG(BX), BWM, BWT, LTK60, TBW
3. N-Gauge Core Bits: NQ, NQ-3.032, NQ2, NQ2-RSG, NQ3/NQTT, NQ3-RSG, NQ3-3.032, NMLC, NWG(NX), NWM, NWT, TNW
4. H-Gauge Core Bits: NQ, HQ-RSG, HQ-3.830, HQ-3.895, HQ3/HQTT, HQ3-RSG, HQ3-3.380, HQ3-3.895, HMLC, HWF-Long, HWF-Short, HWG(HX), HWT
5. P- Gauge Core Bits: PQ, PQ3, PWF-Long, PWF-Short
6. S- Gauge Core Bits: SWF-Long, SWF-Short
7. U- Gauge Core Bits: UWF-Long, UWF-Short
8. Z- Gauge Core Bits: ZWF-Long, ZWF-Short
9. T, TT, T2 &TB Series Metric Core Bits: T36, TT46, T2-46, TB56, TT56, T2-56, T2-66, T2-76, T2-76 coreline, T2-86, T2-86 coreline, T2-101, T2-101 coreline
10. T6 Series Metric Core Bits: T6-76, T6-86, T6-101, T6-116, T6-131, T6-146
11. T6S Series Metric Core Bits: T6S-76, T6S-86, T6S-101, T6S-116, T6S-131, T6S-146
12. B Series (ISO3552-1) Metric Core Bits: B36, B46, B56, B65, B76, B86, B101, B116, B131, B146
13. All Chinese Standard Metric Core Bits for Wireline Core Barrels, Double Tube Core Barrels and Single Tube Core Barrels.

We can also manufacture all kinds of diamond core bits and reaming shells according to customer's special requirement.