What Are Thread Button Drill Bits?
Thread button drill bits are rotary-percussive drilling tools designed to work with top hammer or extension drilling systems. They use tungsten carbide buttons embedded in a steel body to crush and fracture rock while being driven by rotation and impact energy.
Although often compared with dth hammer drilling, thread button bits are primarily used in:
- Bench drilling
- Underground mining
- Tunneling and drifting
- Quarry production drilling
Thread Drill Bits Features:
The following threads are connected: R25, R28, R32, R38, T38, T45, T51, ST58, GT60, and ST68.
Carbide profile: Spherical, ballistic and parabolic.
Thread Button Bits Faces: drop-center, flat, concave, and convex.
127mm to 33mm in bit diameter
Body bits: standard and retrac.
Expert Insights & Industry Trends
Trend 1 – Larger Thread Systems for Productivity
Mining experts report increased adoption of T45 and T51 systems due to higher energy efficiency and reduced rod failures.
Trend 2 – Improved Carbide Technology
Advances in tungsten carbide grain refinement have improved button durability by 20–30%.
Trend 3 – Hybrid Drilling Methods
Some projects combine top hammer drilling with well drilling dth hammer systems depending on depth and formation.
Scientific Data Supporting Performance
Field trials show optimized button layout improves penetration by 15–25%
Proper thread matching reduces rod failure by up to 30%
Enhanced heat treatment increases bit body fatigue life significantly
LEANOMS
Company is a China-based professional drilling tool manufacturer and supplier. We provide a comprehensive range of drilling and anchor equipment, including top hammer drilling tools, down the hole drilling tools, rock anchors, taphole and quarry drilling tools, and others. We use high-quality alloys to make our products sturdy and dependable. As a result, they are commonly utilized in slope anchoring, tunnel excavation, mine exploration, and other related tasks.
Our Button Drill Bits are made from the highest grade alloy steel bar and tungsten carbides, which have undergone heat treatment to increase their wear resistance and impact toughness. This allows them to withstand the most demanding rock drilling requirements and transmit high impact energy into the rock with the least amount of energy loss.

Real-World Applications & User Feedback
Case 1: Underground Mining
Using spherical button T45 bits reduced bit consumption by 22%.
Case 2: Construction Tunneling
Hybrid drilling approach combining top hammer and dth hammer drilling reduced total drilling cost.
Boost your bench and production drilling
Wherever you work – underground mines with production drilling, in surface mines or on construction sites –you'll notice the difference.
There's simply no better way to work through tough formations and fractured rock than with the T-WiZ Speed rod and T-WiZ shank adapter together.
What's more, the T-WiZ range of shank adapters will work wonders with your equipment – whether you're running any other brands.
Leanoms mission:
Focus on drilling clients requirement and challenges, and continue to help them reduce drilling
costs and create greater productivity. Make the drilling works more successful.
Conclusion
Choosing between R25, R32, T38, T45, and T51 thread button drill bits depends on rig power, rock hardness, and hole diameter. The right choice improves penetration, reduces tool wear, and lowers total drilling cost.
As the opening conversation shows:
In rock drilling, the bit is not a detail-it's the deciding factor.








