











4-Wing Spiral Concave PDC Drill Bit A four-wing spiral concave PDC drill bit designed to combine directional stability with efficient cuttings flow. Key Advantages Spiral blade channels support flushing and cuttings removal. Concave profile helps guide the bit during drilling. Four-wing layout balances cutting efficiency and stability. Recommended Applications Water well drilling Geological exploration Mining and engineering drilling Available Specifications Manufacturing range: 94–325 mm. Common international sizes within this range are listed as selectable options. OEM/ODM Customization Diameter, thread connection, cutter layout, color and packaging can be customized. Please provide the target formation, drilling method, required connection and order quantity before production.
Spiral waterways support flushing and cuttings evacuation.
The recessed center helps guide the bit and stabilize the cutting face.
Connection style can be matched to the actual drill string.





| Product type | Four-wing spiral concave coreless PDC drill bit |
|---|---|
| Cutting structure | Four spiral blades with concave center and fixed PDC cutters |
| Primary applications | Water wells, geological exploration, mining and engineering drilling |
| Recommended formations | Soft to medium formations; cutter and flushing design require project confirmation |
| Size | 95.3 mm / 3 3/4" · 114.3 mm / 4 1/2" · 149.2 mm / 5 7/8" · 165.1 mm / 6 1/2" · 200.0 mm / 7 7/8" · 215.9 mm / 8 1/2" · 244.5 mm / 9 5/8" · 250.8 mm / 9 7/8" · 311.2 mm / 12 1/4" · 323.9 mm / 12 3/4" · Custom Size |
| Connection | Male Thread · Female Thread |
| Connection | Threaded connection matched to the customer's drill string |
| Customization | Diameter, connection, cutter layout, waterways, hardfacing, color, logo and packaging |
Performance depends on formation, rig parameters, flushing and operating practice. Final configuration should be confirmed by the technical team.
Send diameter, thread/connection, formation description, target depth, rig model, flushing method and quantity. Photos or geological reports improve configuration accuracy.
Obrigado por se inscrever!
Este e-mail já foi registrado!