"Why does our drill stop halfway again? The bits are wearing out too fast."
"That's because you're using the wrong drill bit design," the engineer replied, "This-right here-is a thread rock button drill bit. Stronger inserts, threaded connection, and faster penetration. One of these can out-drill five standard bits on hard formations."
This is a conversation you can hear in every mining tunnel, water well site, quarry operation, or geothermal drilling project. Whether it's hammer drilling or top hammer technology, thread button bits are known for their durability, impact resistance, fast penetration, clean hole geometry, and long service life.
But what exactly makes them unique?
And why are LEANOMSthread button bits increasingly chosen over global brands like Sandvik-while costing only one-third of the price?
This article breaks down everything you need to know.
Products Description LEANOMS
What Is a Thread Rock Button Drill Bit?
A thread button bit is a type of drill bit that is commonly used in the mining, construction, and geological exploration industries. This type of bit has small, button-shaped inserts that are made of tungsten carbide or other hard materials, and are arranged in a specific pattern on the face of the bit.
The threaded connection is a critical feature. It:
- Connects the bit to a drill string, rod, or shank adapter
- Ensures torque transfer without slippage
- Allows fast replacement during operation
- Reduces downtime
Different thread types are used depending on machine size and rock hardness:
| Thread Type | Application | Machine/Size |
|---|---|---|
| R25 / R28 | Light drilling, soft–medium rock | Small rigs, tunneling |
| R32 / T38 | Medium–hard rock drilling | Construction, bench drilling |
| T45 / T51 | Hard rock, deep drilling | Mining, quarrying |
| ST58 / GT60 | Extreme hardness, long hole drilling | Large mines, high-impact rigs |
Thread rock button drill bits are primarily used in the mining and construction industries for drilling holes in hard rock formations. These specialized drill bits feature cemented carbide buttons or inserts that are strategically placed on the bit's surface to enhance drilling performance.
The applications of thread rock button drill bits include:
Mining: These drill bits are extensively used in underground and surface mining operations to create blast holes for explosive placement. They are used for various mining activities, such as coal mining, gold mining, and ore extraction.
Construction: Thread rock button drill bits are utilized in construction projects for drilling holes in hard surfaces, including concrete, asphalt, and compacted soils. They are used for tasks such as anchor bolt installation, foundation drilling, and pile driving.
Quarrying: In the quarrying industry, thread rock button drill bits are employed to extract blocks of stone or minerals from quarries. They enable efficient drilling of holes for splitting or cutting large rocks into desired shapes and sizes.
Geotechnical Engineering: These drill bits find applications in geotechnical engineering projects, including site investigation, soil sampling, and ground stabilization. They help in collecting valuable data about the subsurface conditions and drilling boreholes for instrumentation and monitoring purposes.
Well Drilling: Thread rock button drill bits are also utilized in oil and gas exploration for drilling deep wells. They can handle challenging rock formations encountered during drilling operations, enabling the extraction of hydrocarbons from underground reservoirs
The installation process for Thread Rock Button Drill Bits generally involves the following steps:
Select the appropriate size and type of Thread Rock Button Drill Bit based on the specific drilling requirements and rock conditions.
Ensure that the drill rig and drilling equipment are properly set up and in good working condition.
Prepare the drill string by attaching the Thread Rock Button Drill Bit to the drill rod or drill pipe using the appropriate connecting mechanism, such as a threaded connection or a shank adapter.
Make sure the Thread Rock Button Drill Bit is securely tightened to prevent it from becoming loose during drilling operations. Use a torque wrench or other suitable tool to achieve the recommended tightening torque.
Check the alignment of the drill bit to ensure it is centered and straight before starting drilling operations.
Begin drilling by applying downward pressure and rotating the drill string. The Thread Rock Button Drill Bit's button-shaped inserts or carbide tips will engage with the rock surface, causing it to break and create a borehole.
Continuously monitor the drilling progress and adjust the drilling parameters, such as rotation speed, feed pressure, and flushing water flow, according to the specific rock conditions and desired drilling performance.
Periodically inspect the condition of the Thread Rock Button Drill Bit during drilling operations and replace it if necessary, especially if the buttons or carbide tips become excessively worn or damaged.
Upon completion of drilling, remove the Thread Rock Button Drill Bit from the drill string by reversing the installation process.
Always follow the manufacturer's instructions and safety guidelines for the specific Thread Rock Button Drill Bit model being used.
Products Description LEANOMS
How Button Inserts Break Rock?
The cutting face includes tungsten carbide buttons shaped as:
- Spherical buttons → best for hard, abrasive rock
- Ballistic buttons → faster penetration in medium rock
- Parabolic buttons → balance between speed and lifespan
When drilling, the inserts impact the rock thousands of times per minute. Each strike creates micro-fractures, breaking the formation into chips and powder.
This is why button bits generate:
- Faster drilling
- Lower energy consumption
- Longer bit life
- Stable hole straightness
Performance of LEANOMS Top Hammer Drilling Tools
LEANOMS Top Hammer Drilling Tools are engineered to:
- Transmit maximum impact energy to the rock
- Minimize energy loss
- Drill faster and straighter
- Reduce failure and downtime
Key performance benefits:
- Optimal hole quality
- Stable performance even in hard or fractured rock
- Lower bit consumption
- Reduced cost per meter drilled
With similar performance and quality to global brands like Sandvik, LEANOMS delivers this at only 1/3 of Sandvik's cost.
This means:
- less cost per hole
- less downtime
- higher profits
Industry Data & Scientific Studies
Engineering research from rock-drilling institutions and mining universities shows:
- Carbide button bits increase penetration rates by 15–40% compared with chisel bits
- Threaded connections reduce slippage and save up to 30% maintenance time
- Using drop-center button bits can improve flushing efficiency by 22%
- Hard rock sites report 50–70% longer bit life when using spherical carbide inserts
Data from field mining trials also show:
- Straight hole deviation reduced by up to 60%
- Fuel and air consumption drop due to faster penetration
- Fewer bit changeovers = more drilling time
This is why mining companies, contractors, and water well drillers worldwide have shifted to threaded button bits.
Real-World Case Studies & Feedback
Case 1 – Hard Granite Quarry, South Africa
A quarry changed from standard chisel bits to LEANOMS R32 button bits.
Penetration increased by 35%
Bit life doubled
Daily drilled meter increased from 78 m → 120 m
Operator feedback:
"More stable and faster, even in abrasive granite. Cost per hole decreased dramatically."
Case 2 – Deep Mining, Peru
A copper mine used T51 spherical bits for long-hole drilling.
310 meters drilled before replacement
Hole straightness greatly improved
Zero bit head breakage
Customer review:
"Equal performance to Sandvik but much cheaper. LEANOMS is now our long-term supplier."
FAQ
1. What are thread rock button bits used for?
They are used for drilling hard rock in mining, quarrying, tunneling, foundation engineering, and water well drilling. The threaded connection allows them to attach securely to drill rods for high-impact hammer drilling.
2. Why are button bits better than normal drill bits?
Because button bits combine hammering + rotation. Carbide inserts crush the rock, giving faster penetration, longer lifespan, better flushing, and straighter holes.
3. How long do thread button bits last?
Depending on rock hardness and drilling system, a high-quality bit can drill 200–600 meters before replacement, sometimes more in medium rock.
4. What material are button bits made from?
Heat-treated alloy steel body + tungsten carbide buttons for extreme hardness and wear resistance.
5. How do I choose the right thread size?
Small threads (R25/R28) for light drilling
Medium (R32/T38) for general hard rock
Large (T45/T51/GT60) for deep or heavy drilling
Conclusion
From the opening conversation to real-world mining sites, the story remains the same:
If you need faster drilling, straighter holes, longer tool life, and lower cost-Thread rock button drill bits are the solution.
Their threaded connection ensures power transmission, while carbide buttons deliver crushing impact to break rock with high efficiency. Scientific data, field results, and operator feedback all confirm: button bits outperform traditional drilling tools in both performance and economics.
With global-brand-level performance at only one-third the cost of Sandvik, LEANOMS allows drilling companies to maximize profit while maintaining world-class quality.
