Specification :

PDC bits are much more effective in rock drilling and rock cutting. They are manufactured with high quality PDC cutters which have the excellent wear-ability and impact toughness.

Polycrystalline Diamond Cutters are set on the crown giving a long working life, very fast penetration and high percentage core recovery in soft to hard formations. The bit may be used with air, water, mud or foam flushing media.

PDC bit is mainly used for drilling soft and medium rock, and it must work under low drilling pressure, mid-low speed and big drainage.

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

For further information, pls visit: www.changtandrill.com
We will feel happy to give you a quotation upon receipt of your detailed requirements.