Product Description
105mm 4 Blades PDC drill bit | |
Diameter (mm) | 105mm -300mm |
Weight on bit (Kg) | 5 |
Speed (rpm) | 150-250 |
Pump capacity (1/min) | 200-250 |
Production process | High quality steel forging and forming, the hardest diamond composite material, and sintered hard alloy |
Main purpose | Flat top PDC drill bits are ainly used for: |
What This Product Does
The 105mm 4-blade PDC drill bit drills full-hole boreholes in soft to medium-hard formations for water-well, mining, and geotechnical applications. The 4-blade configuration provides a balance between cutting aggressiveness and gauge stability that 3-blade bits cannot match in formations containing abrasive quartz veins. At 105mm diameter, this bit fits standard 4-inch (100mm) drill rod systems with a 2.5mm annular clearance, making it compatible with the majority of rotary drilling rigs used in rural water-well programs across South and Southeast Asia.
Performance Advantages
In sandstone and mudstone at 25-60 MPa, the 105mm 4-blade bit achieves 2.5-4.5 m/min, approximately 20% faster than a comparable 3-blade design because the additional blade distributes cutting load more evenly and reduces individual cutter temperature. In formations with quartz veins up to 40% silica content, the 4-blade gauge structure maintains hole diameter within 1.0mm undersize after 300m, compared to 2.5mm for 3-blade designs. The shallow concave profile improves directional stability by centering the bit more effectively than a flat profile.
Application Scenarios
Rural water-well drilling in sedimentary formations across South and Southeast Asia. Open-pit mine dewatering boreholes where fast penetration in soft overburden is the priority. Geotechnical boreholes for foundation investigation in alluvial deposits. For harder formations where higher blade count improves stability, the 113mm Four Wings ARC PDC Drill Bit provides a 4-wing arc profile in 113mm for similar application ranges. Small-diameter monitoring well installation for environmental groundwater assessment.
Problem-Solving Capabilities
Three-blade PDC bits tend to wander off-axis in formations with alternating hard and soft layers, producing spiraled boreholes that complicate casing installation. The 105mm 4-blade bit's symmetrical blade layout and shallow concave crown create a self-centering effect that reduces borehole deviation to under 0.5 degrees per 30m in interbedded formations. A water-well driller in Bangladesh reported that switching from 3-blade to 4-blade bits eliminated casing hang-ups caused by spiraling, reducing average well completion time by 1.5 days.
Technical Support & Customization
SUNGOOD TECH customizes cutter layout density for specific formation hardness ranges. Matrix body can be upgraded to HTW formulation for high-temperature geothermal applications. Back-reamer cutters can be added to the bit shank for simultaneous drilling and reaming in swelling clay formations. Non-standard connection threads and gauge diameters are available with 10-day production lead time.
Customizable 105mm 4-Blade PDC Drill Bit Flat Top PDC Bit for marble
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