PDC bits, as outstanding representatives of modern drilling technology, play an indispensable role in the drilling of oil, gas, geothermal and other wells due to their high efficiency, stability and durability.
PDC bits, also known as polycrystalline diamond compact bits, are manufactured using advanced materials and precision production technologies, enabling them to deliver excellent performance in various complex geological conditions. The unique cutting structure and design of PDC bits allow them to maintain high cutting efficiency, reduce energy consumption, and increase drilling speed during operation.
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 | — | — |
