4-Wing Concave PDC Drill Bit for Water Well & Mining
Four-wing concave PDC drill bit offering stable coreless drilling and controlled tracking for water-well, mining and geological projects. Harder-rock applications require formation-specific cutter and gauge confirmation.
Four-Wing Concave Stability for Demanding Water-Well and Mining Bores
This four-wing concave PDC bit combines a recessed center for tracking with a broader four-wing cutting structure for stability. It can be configured for water-well, mining and geological drilling in medium to harder formations, but cutter grade and operating parameters must be matched to the actual rock.
Concave Tracking Center
The recessed center supports directional tracking and helps stabilize the bit face.
Four-Wing Load Support
Four wings distribute cutting contact and provide a more supported profile than a lighter three-wing design.
Formation-Specific Cutters
Harder or abrasive rock requires confirmed cutter grade, layout, gauge protection and drilling parameters.
Actual Product Views
Technical Specifications
| Product type | Four-wing concave coreless PDC drill bit |
|---|---|
| Cutting structure | Four fixed-cutter wings with concave center and flushing waterways |
| Body material | Alloy-steel body with PDC cutters and wear-resistant protection |
| Primary applications | Water-well, mining and geological coreless drilling |
| Recommended formations | Medium to moderately hard formations after technical review; selected builds may suit harder rock |
| Important limitation | “Hard rock” performance is formation-specific; quartz-rich, highly abrasive, fractured or very hard rock requires engineering confirmation and may need TSP / diamond alternatives |
| Available sizes | Current selectable sizes are shown above; large diameters and connections require confirmation |
| Customization | Diameter, thread, cutter grade/layout, concave profile, waterways, gauge protection, color and packaging |
Selection and Operating Guidance
Recommended when
- More stability is required than an open three-wing bit provides.
- The project involves a water well, mine hole or geological bore.
- Formation information is available for cutter and gauge selection.
Confirm before ordering
- Rock type, compressive strength, abrasiveness and fracture condition
- Diameter, depth, thread and drill string
- Rig torque, speed, weight-on-bit and flushing method
Performance depends on formation, rig parameters, flushing and operating practice. Final configuration should be confirmed by the technical team.
Fast Quote Checklist
Send diameter, thread/connection, formation description, target depth, rig model, flushing method and quantity. Photos or geological reports improve configuration accuracy.
Hunan FengSu Drill Bit Co., Ltd. has 5 independent workshops and hundreds of employees. It has cooperated with China University of Geosciences and hired dozens of professors and doctors to research the ultra-wear-resistant material, with over 50 applications for patents. It's the manufacture of drill bit products which are efficient and strong enough to meet varied drilling requirements like natural gas, oil, coal exploration, geological exploration, and water wells. Certainly, our products will work perfectly under all kinds of rock environments. Adhering to the concept of unremitting technological innovation, strict quality control, and guaranteeing the reliability and professionalism in the products that we offer.
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