PDC bits, also known as polycrystalline diamond compact bits, are outstanding representatives in the field of drilling technology. They combine advanced materials and precision manufacturing technologies, using polycrystalline diamond with high hardness and wear resistance as cutting elements, ensuring efficient and stable drilling in various complex geological conditions.
Thanks to their unique cutting structure and design, PDC bits exhibit excellent cutting performance. The cutting elements are made of polycrystalline diamond material with extremely high hardness and wear resistance, enabling the bit to maintain a stable cutting effect, reduce energy loss, and increase drilling speed. In addition, the cutting structure of PDC bits is carefully optimized to distribute cutting forces, reduce bit wear, and extend its service life.
Specification Table
| Standard Size | Standard IADC Code | API Reg Connection (male thread) | Make‑up Torque (N·m) |
|---|
| 3 7/8" (98.4 mm) | 126 / 216 / 637 | 2 3/8″ | 4100 – 4700 |
| 4 5/8" (117.4 mm) | 126 / 216 / 517 / 537 / 637 | 2 7/8″ | 6100 – 7500 |
| 5 1/4" (133.3 mm) | – | 3 1/2″ | 9500 – 12200 |
| 5 5/8" (142.8 mm) | – | – | – |
| 5 7/8" (149.2 mm) | – | – | – |
| 6" (152.4 mm) | 126 / 127 / 216 / 517 / 537 / 617 / 637 | – | – |
| 6 1/4" (158.7 mm) | – | – | – |
| 6 1/2" (165 mm) | – | – | – |
| 7 1/2" (190 mm) | 126 / 216 / 517 / 537 | 4 1/2″ | 16300 – 21700 |
| 7 5/8" (193 mm) | – | – | – |
| 7 7/8" (200 mm) | – | – | – |
| 8 1/2" (215.9 mm) | 117 / 127 / 217 / 437 / 517 / 537 / 617 / 637 | – | – |
| 9 1/2" (241.3 mm) | – | 6 5/8″ | 38000 – 43400 |
| 9 7/8" (250.8 mm) | – | – | – |
| 10 5/8" (269.8 mm) | – | – | – |
| 11 5/8" (295.3 mm) | – | – | – |
| 12 1/4" (311.1 mm) | – | – | – |
| 13 5/8" (346.0 mm) | 127 / 217 / 517 / 537 / 617 / 637 | – | – |
| 14 3/4" (374.6 mm) | – | 7 5/8″ | 46100 – 54200 |
| 17 1/2" (444.5 mm) | 114 / 115 / 125 / 215 / 515 / 535 / 615 / 635 | – | – |
| 26" (660.4 mm) | 114 / 115 / 125 / 215 / 515 / 535 / 615 | – | – |
