Button Bits for Rock Drilling
Explore our range of tungsten carbide button bits for mining, quarrying, tunneling, and construction. We offer tapered, threaded, retrac, and DTH button bits in various sizes and configurations to meet your rock drilling requirements.
Our Button Bits Product Range
Threaded Button Bits
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Tapered Button Bits
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Retrac Button Bits
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DTH Button Bits
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What Are Button Bits?
Button bits are rock drilling tools equipped with tungsten carbide buttons on the drill bit face. These carbide buttons transmit impact energy to the rock, crushing and fracturing it during drilling. As the drill bit rotates, the buttons strike different points on the rock surface, while flushing holes help remove rock cuttings from the borehole.
Button bits are widely used in mining, quarrying, tunneling, and construction for drilling blast holes and other rock holes.
Depending on the drilling system and application, button bits are available in several designs, including tapered, threaded, retrac, and down-the-hole (DTH) types. They come in various diameters, button shapes, and configurations to suit different rock conditions and drilling requirements.
Key Features of Our Button Bits
01 Tungsten Carbide Buttons
Our button bits feature tungsten carbide inserts designed to withstand repeated impact and abrasive contact with rock. The carbide buttons provide wear resistance and help maintain cutting performance during demanding rock drilling operations.
02 Various Button Shapes
Our button bits are available with different carbide button shapes, including spherical and ballistic designs. Different button profiles can be selected according to rock hardness, abrasiveness, and drilling conditions to achieve a suitable balance between penetration performance and wear resistance.
03 Efficient Flushing Design
Flushing holes and channels help remove rock cuttings from the borehole during drilling. Depending on the bit design, different flushing configurations are available to support effective cuttings removal and reduce the accumulation of drilling debris.
04 Multiple Designs & Sizes
We offer a wide range of button bits in tapered, threaded, retrac, and DTH designs. Various bit diameters, connection types, and button configurations are available to accommodate different drilling equipment and application requirements.
How to Choose the Right Button Bit
1. Choose the Correct Connection Type
First, confirm the drilling system and connection type used with your equipment.
Common options include:
- Tapered connection
- R32, T38, T45, T51 and other threaded connections
- Retrac designs
- DTH connections
The connection must match the drill rod, shank adapter, or hammer being used.
2. Select the Required Bit Diameter
Choose the bit diameter according to the required hole size and drilling application.
Smaller diameters are commonly used for small-hole drilling and light rock drilling, while larger diameters are used for production drilling, quarrying, tunneling, and other heavy-duty applications.
3. Consider the Rock Conditions
Rock hardness and abrasiveness affect the selection of the button bit.
Hard and abrasive rock generally requires a bit configuration with good wear resistance, while softer or less abrasive formations may allow more aggressive button profiles for higher penetration rates.
4. Choose the Appropriate Button and Flushing Design
Button shape, button arrangement, and flushing configuration should also be considered.
Spherical and ballistic carbide buttons are commonly used for different rock conditions and drilling requirements. Proper flushing holes and channels help remove cuttings from the hole and support efficient drilling.
FAQ
What is the difference between a button bit and a cross bit?
A button bit uses multiple tungsten carbide buttons to break rock through repeated impact, while a cross bit uses carbide inserts arranged in a cross-shaped cutting pattern. Button bits are widely used for efficient drilling in many mining, quarrying, and tunneling applications, while cross bits may be preferred for certain rock conditions and drilling requirements.
Which button bit is suitable for hard rock?
The most suitable button bit depends on rock hardness, abrasiveness, drilling equipment, and hole size. Hard and abrasive rock usually requires a bit with strong wear resistance and an appropriate carbide button configuration. We recommend confirming the actual rock conditions before selecting the bit.
What carbide button shapes are available?
Common carbide button shapes include spherical and ballistic buttons. Different button shapes can be selected according to rock hardness, abrasiveness, and the required balance between penetration performance and wear resistance.
What information should I provide when requesting a quotation?
To help us recommend the correct button bit and provide an accurate quotation, please send us the connection type, bit diameter, drilling machine or drill rod specification, rock condition, required quantity, and delivery destination.