Top Hammer Drilling Tools and Raise Boring Cutters, Disc Cutters for Mining Industry
Litian supplies high-quality rock mining tools including top hammer drill string components and raise boring cutters for the mining industry. Over the past decade, we have improved the abrasion resistance and impact resistance of our rock mining tools, elevating their quality to a first-class level domestically. Litian's tools have been successfully applied in various metal mines, improving production efficiency and reducing costs.
Top hammer drilling tools are specialized equipment used in mining, construction, and quarrying to drill blast holes in hard rock formations. These tools operate by delivering high-frequency percussive blows to the drill bit, allowing for efficient penetration in challenging geological conditions. The global top hammer drilling tool market is estimated to range between USD 5.2–5.8 billion in 2025, with mining applications dominating the market.
| Product Category | Types of Mining Tools | Details |
| Top Hammer Drilling Tools | Button Bit | Threaded Button Bit, Tapered Button Bit |
| Drill Rod | Extension Rod, MF Rod, Drifter Rod, Guide Tube, Drill Tube | |
| Shank Adapter | suitable for rock drill Epiroc, Sandvik, Furukawa, Ingersoll-Rand, Montabert, Boart LongYear, etc.; custom design acceptable | |
| Coupling Sleeve | Semi bridge Couplings, Full bridge Couplings, Crossover Couplings | |
| Small Hole Drilling Tools | length and diameter varies | |
| Raise Boring Cutters | Kerf Roller Cutter | 7" ~ 17" (178mm ~ 432mm) |
| Random Roller Cutter |
In the mining industry, high-efficiency and high-precision requirements for mining rock drilling tools are common demands from customers, which is also an important factor that can improve mining efficiency. Litian offers a wide range of high-quality top hammer drill string components (thread drill rods, thread button bits, shank adapters, coupling sleeves), and raise boring cutters for surface mining and underground mining.
Ten years ago, our mining rock drilling tools were only used on a small scale in the mining industry due to their low popularity. Through customers' continuous feedback on product quality, as well as our continuous improvement of rock mining drilling tools, the abrasion resistance and impact resistance of our top hammer drilling tools have been continuously enhanced, and the quality of our mining rock tools has been improved to the domestic first-class level. Excellent quality and good reputation have given us a firm foothold in the mining industry. The successful applications of our rock mining drilling tools to gold mines, silver mines, copper mines, iron mines, phosphorus mines, and other metal mines have improved production efficiency and saved comprehensive development costs for customers.
In underground mines, economical and safe mechanized shaft construction has gradually replaced the traditional methods of drilling and blasting excavation. Raise boring machines are widely used in the drilling of different shafts, such as ventilation shafts, lifting shafts, ore passageways, escape channels, and so on. The raise boring method provides a safe means of excavating a circular hole between two levels of a mine without the use of explosives. The raise boring cutters developed and produced by Litian can be suitable for all types of raise borers and can be mounted on the reaming cutter head with a diameter range of 1–8m.
In order to quickly excavate deep deposits and improve the efficiency and safety of mining operations, equipment manufacturers have developed shaft boring extension machines (SBE) and shaft boring machines (SBM) that use disc cutters as the boring tools for the mining industry. Litian can design and manufacture high-quality disc cutters according to the structure of their cutterheads and the specific rock formations, and provide comprehensive technical support.
Litian has experienced product application experts who can provide excellent configuration solutions of top hammer drilling tools, raise boring roller cutters, and disc cutters for open pit and underground mining according to the specific geological conditions, the use of rock drilling equipment, or the wear of the previously used rock drilling tools, so as to increase the service life of the mining rock drilling tool and improve the overall production efficiency.
As one of the mature mining drilling tools manufacturers, Litian offers high-quality underground rock mining tools and surface mining tools, such as hard rock mining tools, mining drill rods, mining drill bits for sale at competitive prices. The different types of drill bits used in mining we provide can be your first choice! Contact us now!

Commonly used top hammer drilling tools:
Product | Description | Model No. |
T45 Threaded Rock Driling Tools | ||
T45 Thread, 76mm, 8 Gauge buttons, Spherical buttons, Drop center | T45-7613ZCA | |
Retrac Button Bit | T45 Thread, 76mm, 8 Gauge buttons, Spherical buttons, Drop center | T45-7613YFA |
Retrac Button Bit | T45 Thread, 89mm, 8 Gauge buttons, Spherical buttons, | T45-8914YF |
Retrac Button Bit | T45 Thread, 89mm, 8 Gauge buttons, Spherical buttons, Drop center | T45-8914YFA |
Button Bit | T45 Thread, 102mm, 8 Gauge buttons, Spherical buttons | T45-10214ZC |
Retrac Button Bit | T45 Thread, 102mm, 8 Gauge buttons, Spherical buttons, Drop center | T45-10216YFA |
Drill Rod | T45-T45 Thread, Length 3050mm, Round rod (T45 extension rod) | T45-D46-3050 |
Drill Rod | T45-T45 Thread, Length 3660mm, Round rod (T45 drill rod) | T45-D46-3660 |
T45-T45 Thread, Length 3050mm, Round rod (T45 drill steel) | MF-T45-D46-3050 | |
MF Drill Rod | T45-T45 Thread, Length 3660mm, Round rod | MF-T45-D46-3660 |
MF Drill Rod | T45-T45 Thread, Length 3660mm, Round rod | MF-T45-D65-3660 |
Coupling Sleeve | T45-T45 Thread, Length 210mm | LT45-D63-210 |
T51 Threaded Rock Driling Tools | ||
Button Bit | T51 Thread, 76mm, Spherical buttons, 8 Gauge buttons | T51-7612ZC |
Button Bit | T51 Thread, 89mm, Spherical buttons, 8 Gauge buttons | T51-8914ZC |
Retrac Button Bit | T51 Thread, 89mm, Spherical buttons, 9 Gauge buttons | T51-8916YF |
Retrac Button Bit | T51 Thread, 89mm, Spherical buttons, 8 Gauge buttons, Drop center | T51-8914YFA |
Button Bit | T51 Thread, 102mm, Spherical buttons, 8 Gauge buttons | T51-10214ZC |
Retrac Button Bit | T51 Thread, 102mm, Spherical buttons, 9 Gauge buttons | T51-10216YF |
Retrac Button Bit | T51 Thread, 115mm, Spherical buttons, 8 Gauge buttons | T51-11515YF |
Button Bit | T51 Thread, 115mm, Spherical buttons, 8 Gauge buttons, Drop center | T51-11514ZCA |
Retrac Button Bit | T51 Thread, 115mm, Spherical buttons, 8 Gauge buttons, Drop center | T51-11514YFA |
Button Bit | T51 Thread, 127mm, Spherical buttons, 8 Gauge buttons | T51-12716ZC |
Button Bit | T51 Thread, 127mm, Spherical buttons, 8 Gauge buttons, Drop center | T51-12716ZCA |
Retrac Button Bit | T51 Thread, 127mm, Spherical buttons, 8 Gauge buttons, Drop center | T51-12716YFA |
Button Bit | T51 Thread, 152mm, Spherical buttons, 9 Gauge buttons | T51-15218ZC |
Retrac Button Bit | T51 Thread, 152mm, Spherical buttons, 9 Gauge buttons | T51-15218YF |
Drill Rod | T51-T51 Thread, Length 4265mm, Round rod | T51-D52-4265 |
Drill Rod | T51-T51 Thread, Length 6095mm, Round rod | T51-D52-6095 |
MF Drill Rod | T51-T51, Length 3660mm, Round rod | MF-T51-D52-3660 |
MF Drill Rod | T51F-D52-T51M, Length 6095mm, Round rod | MF-T51-D52-6095 |
MF Drill Rod | T51-T51 Thread, Length 1830mm, Round rod | MF-T51-D76-1830 |
| MF Drill Rod | T51-T51 Thread, Length 3660mm, Round rod | MF-T51-D76-3660 |
| MF Drill Rod | T51-T51 Thread, Length 3660mm, Round rod | MF-T51-D76-3660 |
| Coupling Sleeve | T51-T51 Thread, Length 225mm, Semi-bridge type | LT51-D71-225 |
| Coupling Sleeve | T51-T51 Thread, Length 250mm, Semi-bridge type | LT51-D71-250 |
Commonly used top hammer drilling tools :
Product | Description | Model No. |
R32 Threaded Rock Driling Tools | ||
Button Bit | R32 Thread, 43mm, Ballistic buttons, 5 Gauge buttons | R32-437ZC |
Button Bit | R32 Thread, 45mm, Ballistic buttons, 6 Gauge buttons | R32-459ZC |
Reaming Bit | R32 Thread, 76mm, 6 Gauge buttons | R32-7612KK |
Reaming Bit | R32 Thread, 89mm, 8 Gauge buttons | R32-8915KK |
Reaming Bit | R32 Thread, 102mm, 8 Gauge buttons | R32-10217DX |
MF Drill Rod | T38-R32 Thread, Length 3700mm, Hexagonal rod | MF-T38/R32-H35-3700 |
MF Drill Rod | R38-R32 Thread, Length 4265mm, Hexagonal rod | MF-T38/R32-H35-4265 |
Drill Rod | T38-R32 Thread, Length 4265mm, Hexagonal rod | T38/R32-H35-4265 |
Drill Rod | R38-R32 Thread, Length 3700mm, Hexagonal rod | T38/R32-H35-3700 |
Coupling Sleeve | R38-R38 Thread, Length 170mm, Full-bridge type | LR38-D56-170R |
Coupling Sleeve | R38-R38 Thread, Length 170mm, Semi-bridge type | LR38-D56-170 |
Coupling Sleeve | T38-T38 Thread, Length 190mm, Semi-bridge type | LT38-D56-190 |
T38 Threaded Rock Driling Tools | ||
Button Bit | T38 Thread, 64mm, Spherical buttons, 6 Gauge buttons, Drop center | T38-6410ZCA |
Retrac Button Bit | T38 Thread, 64mm, Ballistic buttons, 8 Gauge buttons, Drop center | T38-6413YFA |
Retrac Button Bit | T38 Thread, 76mm, Spherical buttons, 8 Gauge buttons | T38-7612YF |
Retrac Button Bit | T38 Thread, 76mm, Spherical buttons, 8 Gauge buttons, Drop center | T38-7613YFA |
Reaming Bit | T38 Thread, 89mm, Spherical buttons, 8 Gauge buttons | T38-8913ZC |
Reaming Bit | T38 Thread, 102mm, 64mm, Spherical buttons, 8 Gauge buttons, | T38-10214DX |
Reaming Bit | T38 Thread, 127mm, 64mm, Spherical buttons, 8 Gauge buttons | T38-12716DX |
Reaming Bit | T38 Thread, 152mm, 89mm, Spherical buttons, 9 Gauge buttons | T38-15218DX |
MF Drill Rod | T38-T38 Thread, Length 1525mm, Round rod | MF-T38-D56-1525 |
MF Drill Rod | T38-T38 Thread, Length 1830mm, Round rod | MF-T38-D56-1830 |
MF Drill Rod | T38-T38 Thread,Length 915mm, Round rod | MF-T38-D39-915 |
MF Drill Rod | T38-T38 Thread, Length 1830mm, Round rod | MF-T38-D39-1830 |
T45 Threaded Rock Driling Tools | ||
Button Bit | 76mm, Spherical buttons, 8 Gauge buttons, T45 Thread, Drop center | T45-7613ZCA |
Retrac Button Bit | 76mm, Spherical buttons, 8 Gauge buttons, T45 Thread, Drop center | T45-7613YFA |
Button Bit | 89mm, Spherical buttons, 8 Gauge buttons, T45 Thread, Drop center | T45-8914ZCA |
Retrac Button Bit | 89mm, Spherical buttons, 8 Gauge buttons, T45 Thread, Drop center | T45-8914YFA |
Reaming Bit | T45 Thread, 102mm, 64mm, Spherical buttons, 8 Gauge buttons | T45-10216DX |
Reaming Bit | T45 Thread, 127mm, 76mm, Spherical buttons, 8 Gauge buttons | T45-12714DX |
Reaming Bit | T45 Thread, 152mm, 118mm, Spherical buttons, 9 Gauge buttons | T45-15212DX |
Reaming Bit | T45 Thread, 178mm, 76mm, Spherical buttons, 9 Gauge buttons | T45-17824DX |
MF Drill Rod | T45F-T45M Thread, Length 1525mm, Round rod | MF-T45-D46-1525 |
MF Drill Rod | T45F-T45M Thread, Length 1830mm, Round rod | MF-T45-D46-1830 |
MF Drill Rod | T45F-D65-T45M Thread, Length 1830mm, Round rod | MF-T45-D65-1830 |
Selecting the right rock mining drilling tools is essential for achieving optimal productivity and cost-efficiency in both surface and underground operations. Whether you are drilling blast holes in an open-pit mine with T45 or T51 threaded tools, or excavating ventilation shafts with raise boring cutters, the quality and compatibility of your tools directly impact penetration rates, tool life, and overall operational costs.
Litian's commitment to continuous improvement has elevated our rock mining tools to a domestic first-class level, with successful applications across gold, silver, copper, iron, and phosphorus mines. Our product application experts can help you select the right configuration based on your specific geological conditions and equipment—because the right tool for the right rock makes all the difference.
Q1: What types of rock mining drilling tools does Litian offer?
Litian offers a comprehensive range of top hammer drilling tools including threaded button bits, tapered button bits, drill rods (extension rods, MF rods, drifter rods), shank adapters, coupling sleeves, and small hole drilling tools. We also supply raise boring cutters (kerf and random roller cutters) for underground shaft construction.
Q2: What is the difference between T45 and T51 threaded rock drilling tools?
T45 and T51 refer to different thread sizes in top hammer drilling systems. T45 threads have a nominal diameter of approximately 45mm and are suitable for hole diameters of 76–127mm. T51 threads are larger (approximately 51mm) and offer higher torque capacity, making them suitable for deeper holes and larger diameters up to 152mm. The choice depends on your hole depth, diameter requirements, and drill rig specifications.
Read more: T45 vs. T51 Button Bits: Which Thread Size Is Better for Hard Rock Drilling?
Q3: What are raise boring cutters used for in mining?
Raise boring cutters are used in raise boring machines to excavate vertical or inclined shafts between two levels of a mine without the use of explosives. They are mounted on reaming cutter heads and are commonly used for ventilation shafts, lifting shafts, ore passageways, and escape channels. Litian's raise boring cutters can be mounted on cutter heads with diameters ranging from 1 to 8 meters.
Q4: How do I choose the right button bit for my mining application?
Button bit selection depends on rock hardness, abrasiveness, and hole diameter requirements. For extremely hard rock like granite, spherical buttons offer maximum wear resistance. For soft to medium formations, ballistic buttons provide faster penetration. Drop center face designs improve hole straightness, while retrac designs prevent jamming in fractured rock.
Read more: How to Choose the Right Button Bit for Rock Drilling
Q5: What maintenance practices extend the life of rock mining drilling tools?
Key maintenance practices include daily inspection of button wear and thread condition, thorough cleaning of threads before every connection, proper application of thread compound, and regular monitoring of feed pressure to match rock conditions. Replacing worn components such as guide sleeves and shank adapters at recommended intervals also prevents premature failure and extends overall tool life.
"Top Hammer Drilling Tool Global Market Insights 2025." Research and Markets. https://www.researchandmarkets.com