Q Series: AQ, BQ, NQ, HQ, PQ/AQTK, BQTK, BQ3, NQ2, NQ3, NQTT, HQ3, HQTT, PQ3, PQTT, SQ T2 series: T2-46, T2-56, T2-66, T2-76, T2-86, T2-101 T6 series: T6-76, T6-86, T6-101, T6-116, T6-131, T6-146B series: B36, B46, B56, B66, B76, B86, B101, B116, B131, B146 Other series: TW, WG, WM, MLC, LTK Non-standard also can be made as your demand 
Our Advantages 1. Professional Team & Experience: Our expert team in this area has an experience of more than 20 years. 2. World-Class Intelligent Facilities: We own precision CNC machine, milling machine, quenching machine, precision lathe, sintering machine and other advanced equipments. 3. Selected High Quality Raw Materials: We select raw materials from leading big steel factories, such as BAO STEEL, TANG STEEL, HEBEI STEEL GROUP which are the best and largest raw material manufacturers in China. 4. Strict Physical/Chemical Testing Procedures: We have own lab in our factory to make sure our products can meet the requirements of design and process, and provide reliable testing data. 5. Short Delivery Time: Normal production takes 7 days. And we in stock standard products which can be shipped very soon. 6. Safe Package & Shipment: Standard export packages with well protection or in wooden/steel cases. 7. Best After-Sale Service: Timely communication & response especially for trouble shooting. We got good reputation around the world since all these years. 
| Bit Matrix | K1 | K3 | K5 | K7 | K9 | K11 |
| Matrix Hardness | HRC54 | HRC42 | HRC30 | HRC18 | HRC6 | HRC0 |
| Rock Hardness | Select K1 in case of low working lifte of K3 | Soft Rock Medium Hard Rock Hard Rock | Select K11 without footage of K9 | |||
| Grain Size of Rock | Large Grain Medium Grain Fine Grain | |||||
| Breakage of Rock | Serious Breakage Normal Breakage Complete | |||||
| Drill Rig Power | High Power Medium Power Low Power | |||||
| Seq. | Sizes | Item | OD(mm) | Code |
| 1 | AWL | Reaming Shell | 48 | P |
| 2 | BWL BWL2 | Reaming Shell | 59.9 | P, D |
| 3 | NWL | Reaming Shell | 75.7 | P, D |
| 4 | HWL | Reaming Shell | 96.1 | P, D |
| 5 | PWL | Reaming Shell | 122.6 | P, D |
| 6 | SWL | Reaming Shell | 148.1 | P, D |
