Tel:
0086-190-3126-6699
Email:
jessica@sanlongdrillbit.cn
Steel body PDC bits from Sanlong are engineered for demanding oilfield and geothermal applications — combining high-alloy steel impact resistance with customizable blade geometry and repairable construction. These bits deliver superior impact resistance and consistent penetration rates across soft-to-medium and interbedded formations. Unlike matrix body alternatives, every steel body bit can be re-tipped and returned to service — keeping your cost-per-foot low and your rig running.
Available in 4- to 6-blade configurations across sizes from 3" to 26", each bit is built to your formation profile and backed by API 7-1 compliance.
Standard configurations are listed below. Custom IADC codes, blade counts, cutter sizes, nozzle arrangements, and thread connections are available on request.
| IADC code | Inch | Blade | Gage length | Nozzle Quantity | Weight | Rotate Speed | Connected Thread | Recommended Torque |
| S123 | 8 1/2'' | 4 | 2-3.5 | 7 | 0.10-1.00 | 60-250 | 4 1/2 REG | 16.3-21.7 |
| S223 | 8 1/2'' | 4 | 2-3.5 | 6 | 0.10-1.00 | 60-250 | 4 1/2 REG | 16.3-21.7 |
| S323 | 6 1/8'' | 5 | 2-3.5 | 5 | 0.10-1.00 | 80-300 | 3 1/2 REG | 9.5-12.2 |
| S423 | 8 1/2'' | 5 | 2-3.5 | 7 | 0.10-1.00 | 60-250 | 4 1/2 REG | 16.3-21.7 |
| S432 | 6'' | 6 | 2-3.5 | 6 | 0.10-1.00 | 80-300 | 3 1/2 REG | 9.5-12.2 |
Our steel body PDC bits are available in various IADC classifications to match different formation hardness levels and drilling conditions. If you're unsure how to select the correct code, see our guide on Understanding IADC Codes for Drill Bits.
Steel body PDC bits are built to maximize performance and longevity, particularly in tough drilling environments. Various features are designed to tackle specific drilling challenges, including:
Enhanced Impact Resistance:
Engineered from high-alloy steel, these bits withstand sudden shock loads and lateral vibration that would fracture matrix body bits — making them the preferred choice for interbedded and hard-to-predict formations.
Customizable Blade Design:
Select from 4- to 6-blade configurations with optimized cutter backrake and side rake angles to maximize ROP in your target formation while minimizing stick-slip and bit whirl.
Optimized Hydraulic Systems:
Precision-engineered junk slot geometry and interchangeable alloy nozzles maintain optimal hydraulic horsepower at the bit, accelerating cuttings transport and extending diamond cutter life in high-temperature wells.
Repairable Body:
Steel body construction allows field re-tipping and cutter replacement after a single run — dramatically lowering cost-per-foot versus disposable matrix body pdc bit. For a detailed comparison of these two bit constructions, read our guide: Matrix Body vs. Steel Body PDC Bits: What's the Difference?
These tailored features make steel body PDC bits ideal for oil, gas, geothermal, and water well drilling, providing a balance between durability, flexibility, and cost-efficiency.
Steel body PDC bits from Sanlong are proven across a wide range of drilling programs:
Oil & Gas Exploration and Production — Vertical, directional, and horizontal wells in shale, limestone, dolomite, and sandstone formations
Geothermal Drilling — High-temperature wells requiring durable, thermally stable cutting structures
Water Well Drilling — Cost-effective penetration in unconsolidated and semi-consolidated formations
Coal Field Exploration — Medium-depth boreholes with varying lithology
Mining & Mineral Exploration — Formation-matched bit design for core and rotary drilling programs
Best suited for: Soft to medium-hard formations (UCS up to ~100 MPa), including shale, mudstone, limestone, sandstone, and interbedded sequences.
API 7-1 & ISO Certified — Every bit manufactured to international drilling standards
Custom Engineering — Blade count, cutter geometry, nozzle configuration, and thread connections tailored to your well program
Full Size Range — 3" to 26" available, including non-standard sizes
Technical Support — Our engineering team reviews your formation data and offset records to recommend the optimal bit design before you order
Global Supply — Shipped worldwide with competitive lead times
EN 
