The main component of PDC bits is the polycrystalline diamond layer, which is manufactured using high‑temperature and high‑pressure synthesis technology. Polycrystalline diamond is formed by bonding numerous fine diamond grains at high temperature and pressure. This structure gives PDC bits extremely high hardness and wear resistance, enabling drilling in extreme geological conditions.
The body (matrix) of PDC bits is usually made of cemented carbide, which has good strength and rigidity. The cemented carbide is produced by high‑temperature sintering of metal carbide particles (e.g., tungsten carbide) and metal powder (e.g., cobalt). The function of this matrix is to support the polycrystalline diamond layer and transmit rotational and drilling forces to the rock.
Product Technical Specifications
| Parameter | Value |
|---|
| Name / Description | Steel PDC bit 9½″ CS1605 |
| Nominal Size | 9½ inch (241.3 mm) |
| Model | CS1605 |
| Series | CS |
| Body Type | Steel |
| Primary Cutter Size | 16 mm |
| Number of Wash Ports / Nozzles | 7 |
| Number of Blades | 5 |
| Gauge Length | 2.7″ |
| Junk Slot Area (in²) | 25.4 |
| Connection | 6⅝″ API Reg |
| Make‑up Torque (kN·m) | 51.7 – 56.9 |
| Application | Water wells, oil wells, HDD (horizontal directional drilling), exploration, etc. |
| Weight | 98 kg |
| Certifications | API 7‑1, SY/T5164, ISO 9001:2008 |
