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77mm T38 Thread Button Bits for Heavy Rock Drilling with Durable Carbide Buttons Conditions
Product Name77mm T38 Thread Button Bits for Heavy Rock Drilling Conditions
ThreadT38
Diameter77mm
Carbide Tungsten5×11mm, 8×11mm
Skirt DesignNormal
Weight2.7 kg
Carbide DesignSpherical Buttons
Face DesignConcave Heart
When your project requires drilling through highly abrasive, hard rock formations, ordinary button bits simply won't cut it — leading to wasted time, increased operating costs, and potential unplanned downtime. Our Henglong 77mm T38 threaded button bit is designed specifically for heavy-duty rock drilling applications, combining robust construction, precision engineering, and powerful performance to tackle your toughest jobs.
T38 Thread: The Core of Heavy - Duty Connections
The T38 trapezoidal thread is the core advantage of this drill bit, designed for high - torque, high - impact drilling applications:
Secure, Non-Slip Connection: Unlike standard threads, the T38's symmetrical trapezoidal profile creates a tight, interlocking fit with the matching drill rod. This eliminates thread slippage, even under extreme rotational torque and repeated impacts, ensuring maximum energy transfer from the drill rig to the drill bit working face.
Compatibility with Heavy-Duty Equipment: Fully compatible with mainstream heavy - duty rock drilling rigs and surface drill rigs (such as Atlas Copco and SandV). Ideal for large-scale open - pit mining, deep tunnel excavation, and quarry blasting operations requiring stable deep - hole drilling.
The 77mm diameter achieves a perfect balance between drilling speed and hole integrity in hard rock applications. The optimized body geometry of the drill bit minimizes "bit deviation" on uneven rock surfaces, reducing the need for rework and ensuring accurate implementation of the blasting pattern.
Durable Construction Features
High-quality carbide buttons
Reinforced drill body
High-flow flushing holes
Extended Service Life
The wear-resistant carbide teeth reduce the frequency of drill bit replacement, lowering the drilling cost per meter and improving operational efficiency.
For customized solutions, please contact our technical team.
HENGLONG is an internationally recognized and leading producer of superior percussive rock drilling tools.Our high performance products include top hammer drill bits extension and tunneling rods,integral and tapered rods,shank adapters,coupling,drag bits,blast furnace tapping tools,self dr... HENGLONG is an internationally recognized and leading producer of superior percussive rock drilling tools.Our high performance products include top hammer drill bits extension and tunneling rods,integral and tapered rods,shank adapters,coupling,drag bits,blast furnace tapping tools,self dr...
