High Strength Alloy Steel Rock Drill Tapered Button Bit For Tunnel Construction
Product Description
The Tapered Button Bit is an essential component in pneumatic rock drills and tapered drill rods, designed for hard rock drilling applications. These bits connect via tapered interfaces to drill rods and are primarily used in mine secondary crushing, bolting, drifting, and related operations.
Featuring tungsten carbide tips and hot-plated skirts, these tapered button bits offer superior drilling performance and extended service life compared to traditional chisel and cross drill bits. Available in standard taper angles of 7°, 11°, and 12° to suit various rock types and applications.
Key Features
- Tapered interface ensures firm connection with drill rods, minimizing looseness during operation
- Constructed from high-strength alloy steel for durability in hard rock conditions
- Heat-treated for enhanced wear resistance and structural integrity
- Tungsten carbide tips provide excellent drilling performance
- Hot-plated skirts extend service life
Technical Specifications
| Diameter (mm) |
Diameter (inch) |
Gauge Buttons |
Front Buttons |
Side Buttons |
Flushing Hole |
Length (mm) |
Weight (Kg) |
| 34 |
1 11/32 |
3x8 |
2x7 |
1 |
1 |
50 |
0.39 |
| 34 |
1 11/32 |
4x8 |
2x7 |
1 |
2 |
50 |
0.39 |
| 34 |
1 11/32 |
5x7 |
2x7 |
1 |
1 |
50 |
0.4 |
| 35 |
1 11/32 |
6x7 |
2x7 |
1 |
2 |
50 |
0.41 |
| Bit Diameter (mm) |
Bit Diameter (inch) |
Button Number (pieces) |
Angle(°) |
Length (mm) |
| 28 |
11/8" |
4 |
7°/11°/12° |
50-65 |
| 30 |
1 3/16" |
4~6 |
7°/11°/12° |
50-65 |
| 32 |
11/4" |
4~7 |
7°/11°/12° |
50-65 |
| 34 |
111/32" |
4~8 |
7°/11°/12° |
50-65 |
| 35 |
13/8" |
7~8 |
7°/11°/12° |
50-65 |
| 36 |
113/32" |
4~8 |
7°/11°/12° |
50-65 |
| 38 |
11/2" |
4~8 |
7°/11°/12° |
50-65 |
| 40 |
19/16" |
4~8 |
7°/11°/12° |
50-65 |
| 41 |
15/8" |
4~8 |
7°/11°/12° |
50-65 |
| 42 |
121/32" |
4~8 |
7°/11°/12° |
50-65 |
Applications
These high-performance tapered button bits are ideal for demanding applications including:
- Mining operations
- Tunnel construction
- Geological exploration
- Construction engineering
- Hydropower projects
- Railway and highway construction
- Municipal engineering
- Environmental protection projects
Manufacturer Profile
Hebei Minetech Machinery Technology Co., Ltd is a joint venture enterprise with European partners, located in Shijiazhuang City, Hebei Province, China. Specializing in mining machinery manufacturing, we produce hydraulic and pneumatic drill machines, roof bolters, and drilling consumables including drill bits and rods.
With over a decade of experience and a professional team of engineers, we provide complete solutions for mining machinery. Our products are exported to more than thirty countries including Southeast Asia, the United States, Germany, Britain, South Africa, Poland, Russia, and South America, establishing a strong international reputation.
