Custom Convex Drill Bit Manufacturer in China

We offer high-performance convex drill bits, engineered for rapid penetration in soft to medium-hard rock formations. Their aggressive cutting face ensures maximum drilling speed and efficient rock breaking, boosting your productivity. Ideal for applications prioritizing fast progress, our durable convex bits provide excellent stability and reliability, ensuring a smooth and efficient drilling operation.

Sinodrills - Your Trusted Convex Drill Bit Manufacturer from China

Sinodrills is your trusted convex drill bit manufacturer from China. With two decades of expertise, we produce high-performance bits designed for rapid penetration in soft to medium-hard rock. Our advanced manufacturing ensures aggressive cutting action, maximizing drilling speed and efficiency. Count on Sinodrills for durable, reliable convex drill bits, globally supplied across 110+ countries.

convex drill bit Design

Aggressive Face Profile: The outward-curving convex shape provides a very aggressive cutting action, concentrating energy for faster penetration in softer rocks.
Optimal for Softer Rock: This design excels in less abrasive formations, quickly fracturing rock for rapid drilling progress.
Improved Chip Flushing: The bit’s shape efficiently guides rock cuttings away, preventing re-grinding and ensuring continuous high-speed performance.
Good Starting Stability: The leading edge helps the bit “bite” into the rock, offering stable collaring and reducing initial hole deviation in its intended applications.

Various Convex Drill Bit

carbide tipped convex drill bits

We offer premium carbide-tipped convex drill bits, engineered for superior performance in soft to medium-hard rock. The strategically placed carbide inserts on the aggressive convex face ensure rapid penetration, exceptional wear resistance, and extended bit life. Ideal for maximizing drilling speed and efficiency, our bits deliver consistent, high-quality results, reducing operational costs for your projects.

convex face threaded button drill bit

We offer premium convex face threaded button drill bits, engineered for aggressive drilling in soft to medium-hard rock formations. Our design ensures rapid penetration rates and efficient rock breaking, boosting your productivity significantly. With robust threaded connections and durable carbide buttons, these bits provide excellent stability and extended service life, guaranteeing reliable performance for your drilling operations.

Convex face threaded button drill bit with conical buttons

We offer specialized convex face threaded button drill bits, meticulously designed with conical buttons for aggressive and efficient drilling. This combination excels in soft to medium-hard rock, delivering exceptional penetration rates and superior rock breaking. The sharp, conical inserts ensure optimal impact energy transfer, while the robust threaded connection guarantees stability and extended service life for high-performance drilling.

Convex Face Threaded Button Drill Bit with Conical Inserts

We offer the DHD convex face threaded button drill bit with Conical Inserts, engineered for superior performance in demanding drilling conditions. This robust bit delivers aggressive penetration rates in soft to medium-hard rock, enhanced by the sharp, conical carbide inserts. Designed for optimal energy transfer and exceptional durability, it ensures efficient drilling and extended service life for your DHD hammer system.

Retrac Convex Drill Bit

We offer Retrac Convex Drill Bits, specifically designed for easy retrieval in challenging ground conditions. These bits feature a specialized face design that, while still convex for aggressive penetration, allows for simpler extraction after drilling. This is particularly beneficial in fractured or unstable rock, minimizing the risk of losing the bit downhole and improving operational efficiency.

DTH Convex Drill Bit

We offer high-performance DTH (Down-The-Hole) Convex Drill Bits, meticulously engineered for rapid penetration in soft to medium-hard rock formations. Their aggressive face design ensures superior drilling speed and efficient rock breaking. Ideal for maximizing productivity in various applications like quarrying and construction, our durable convex DTH bits provide excellent stability and reliability for consistent, high-speed drilling.

DTH Convex Drill Bit

Customize Your Desired Convex Drill Bit

Carbide Button Geometry & Array

We precisely tailor the shape (e.g., parabolic, domed) and the specific array pattern of the carbide buttons on the convex face. This customization optimizes the bit’s aggressive cutting action for various rock strengths, ensuring maximum penetration and efficient rock breaking in soft to medium-hard formations, directly impacting drilling speed and efficiency.

Flushing Hole Optimization

We design and customize the number, size, and strategic placement of flushing holes on the convex face. This ensures optimal debris removal, preventing re-grinding of cuttings and maintaining continuous high penetration rates. Efficient flushing is crucial for minimizing wear and extending the life of the bit, especially in sticky or fractured ground.

Face Profile Refinement

While fundamentally convex, we can subtly refine the exact curvature and leading edge of the convex face. This fine-tuning allows us to further optimize the bit’s aggressiveness for specific rock types or desired hole straightness, balancing maximum penetration with controlled drilling, adapting to your project’s precise geological requirements.

Skirt/Gauge Wear Protection

We incorporate advanced wear-resistant features into the skirt and gauge areas of the convex drill bit, such as hardened inserts or specialized material treatments. This customization significantly extends the bit’s overall service life in abrasive conditions, protecting the crucial diameter-maintaining sections and ensuring consistent hole quality over time.

Convex Drill Bit vs Concave

Convex Drill Bit

Face Design: Features an outward-curving face, creating a more aggressive, pointed profile.
Primary Strength: Excels in achieving high penetration rates.
Ideal Rock Type: Best suited for soft to medium-hard rock formations where speed is a priority.
Drilling Action: Aggressively breaks and crushes rock for rapid progress.
Hole Straightness: Can be less precise in maintaining perfect hole straightness, especially in fractured ground, compared to concave designs.

Concave Drill Bit

Face Design: Features an inward-curving (dished) face, providing a more central pilot point.
Primary Strength: Optimizes for excellent hole straightness and accuracy.
Ideal Rock Type: Performs well in medium to hard and sometimes abrasive rock formations where precision is key.
Drilling Action: Efficiently cuts and grinds rock, maintaining a stable drilling path.
Penetration Rate: Generally offers a good penetration rate, though typically not as aggressive as a convex bit in softer conditions.

Convex Drill Bit Applications

High-Speed Production Drilling

We specialize in providing convex drill bits for projects demanding maximum penetration rates, such as large-scale quarrying and open-pit mining. Our bits are optimized for rapid rock breaking in softer to medium-hard formations, directly translating to increased daily output and improved overall operational efficiency for our clients.

Water Well and Geothermal Drilling

We supply convex drill bits perfectly suited for drilling water wells and geothermal boreholes in varying ground conditions. Their aggressive cutting action ensures quick progress through soil, clay, and fractured rock layers, minimizing drilling time and enabling efficient installation of well casings or geothermal loops.

Construction and Infrastructure Projects

For diverse construction and infrastructure endeavors, we offer convex drill bits that perform exceptionally in softer overburden and less consolidated rock. Whether it’s for foundation drilling, piling, or trenching, our bits provide the necessary speed and reliability to meet tight project deadlines and maintain productivity on site.

Exploration and Blasting Hole Drilling

We provide convex drill bits for mineral exploration and the creation of blasting holes in compatible rock types. Their ability to achieve fast penetration is crucial for quickly identifying valuable deposits or preparing sites for blasting operations, making them a cost-effective choice for both initial surveys and ongoing production.

All-in-one Convex Drill Bit Solutions for Your Project

Sinodrills provides all-in-one convex drill bit solutions, designed for aggressive penetration and high productivity in soft to medium-hard rock. We offer customized button configurations and face profile refinements to optimize drilling speed and efficiency for your specific project. Trust our durable, high-performance convex bits to maximize your output and achieve rapid progress in diverse geological conditions.